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Finding the Fourth Proportional to 9,506.40, 14,259.60 and 9,031.20

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Solution

The fourth proportional to 9,506.40, 14,259.60 and 9,031.20 is: 13,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,506.40 : 14,259.60 = 9,031.20 : x
  2. Step 2: Convert to fraction form
    9,506.40/14,259.60 = 9,031.20/x
  3. Step 3: Cross multiply
    9,506.40x = 14,259.60 × 9,031.20
  4. Step 4: Simplify right side
    9,506.40x = 128,781,299.52
  5. Step 5: Solve for x
    x = 128,781,299.52/9,506.40
  6. Step 6: Final answer
    x = 13,546.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.