Home / 10,929.60-16,394.40-10,084.80

Finding the Fourth Proportional to 10,929.60, 16,394.40 and 10,084.80

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Solution

The fourth proportional to 10,929.60, 16,394.40 and 10,084.80 is: 15,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.60 : 16,394.40 = 10,084.80 : x
  2. Step 2: Convert to fraction form
    10,929.60/16,394.40 = 10,084.80/x
  3. Step 3: Cross multiply
    10,929.60x = 16,394.40 × 10,084.80
  4. Step 4: Simplify right side
    10,929.60x = 165,334,245.12
  5. Step 5: Solve for x
    x = 165,334,245.12/10,929.60
  6. Step 6: Final answer
    x = 15,127.20

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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.