Home / 9,679.48-13,358.76-5,431.24

Finding the Fourth Proportional to 9,679.48, 13,358.76 and 5,431.24

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Solution

The fourth proportional to 9,679.48, 13,358.76 and 5,431.24 is: 7,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.48 : 13,358.76 = 5,431.24 : x
  2. Step 2: Convert to fraction form
    9,679.48/13,358.76 = 5,431.24/x
  3. Step 3: Cross multiply
    9,679.48x = 13,358.76 × 5,431.24
  4. Step 4: Simplify right side
    9,679.48x = 72,554,631.66
  5. Step 5: Solve for x
    x = 72,554,631.66/9,679.48
  6. Step 6: Final answer
    x = 7,495.72

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Half scale
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Double scale
Find fourth proportional to 9,680.48, 13,360.14 and 5,432.24
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.