Home / 10,331.36-14,257.12-5,615.76

Finding the Fourth Proportional to 10,331.36, 14,257.12 and 5,615.76

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Solution

The fourth proportional to 10,331.36, 14,257.12 and 5,615.76 is: 7,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.36 : 14,257.12 = 5,615.76 : x
  2. Step 2: Convert to fraction form
    10,331.36/14,257.12 = 5,615.76/x
  3. Step 3: Cross multiply
    10,331.36x = 14,257.12 × 5,615.76
  4. Step 4: Simplify right side
    10,331.36x = 80,064,564.21
  5. Step 5: Solve for x
    x = 80,064,564.21/10,331.36
  6. Step 6: Final answer
    x = 7,749.66

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Double scale
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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.