Home / 10,331.40-14,257.41-5,615.70

Finding the Fourth Proportional to 10,331.40, 14,257.41 and 5,615.70

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Solution

The fourth proportional to 10,331.40, 14,257.41 and 5,615.70 is: 7,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.40 : 14,257.41 = 5,615.70 : x
  2. Step 2: Convert to fraction form
    10,331.40/14,257.41 = 5,615.70/x
  3. Step 3: Cross multiply
    10,331.40x = 14,257.41 × 5,615.70
  4. Step 4: Simplify right side
    10,331.40x = 80,065,337.34
  5. Step 5: Solve for x
    x = 80,065,337.34/10,331.40
  6. Step 6: Final answer
    x = 7,749.71

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Half scale
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Double scale
Find fourth proportional to 10,332.40, 14,258.79 and 5,616.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.