Home / 10,724.40-16,054.20-9,428.40

Finding the Fourth Proportional to 10,724.40, 16,054.20 and 9,428.40

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Solution

The fourth proportional to 10,724.40, 16,054.20 and 9,428.40 is: 14,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,724.40 : 16,054.20 = 9,428.40 : x
  2. Step 2: Convert to fraction form
    10,724.40/16,054.20 = 9,428.40/x
  3. Step 3: Cross multiply
    10,724.40x = 16,054.20 × 9,428.40
  4. Step 4: Simplify right side
    10,724.40x = 151,365,419.28
  5. Step 5: Solve for x
    x = 151,365,419.28/10,724.40
  6. Step 6: Final answer
    x = 14,114.12

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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.