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Finding the Fourth Proportional to 10,957.60, 16,436.40 and 9,953.20

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Solution

The fourth proportional to 10,957.60, 16,436.40 and 9,953.20 is: 14,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.60 : 16,436.40 = 9,953.20 : x
  2. Step 2: Convert to fraction form
    10,957.60/16,436.40 = 9,953.20/x
  3. Step 3: Cross multiply
    10,957.60x = 16,436.40 × 9,953.20
  4. Step 4: Simplify right side
    10,957.60x = 163,594,776.48
  5. Step 5: Solve for x
    x = 163,594,776.48/10,957.60
  6. Step 6: Final answer
    x = 14,929.80

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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.