Home / 9,143.28-13,711.68-3,946.32

Finding the Fourth Proportional to 9,143.28, 13,711.68 and 3,946.32

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Solution

The fourth proportional to 9,143.28, 13,711.68 and 3,946.32 is: 5,918.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.28 : 13,711.68 = 3,946.32 : x
  2. Step 2: Convert to fraction form
    9,143.28/13,711.68 = 3,946.32/x
  3. Step 3: Cross multiply
    9,143.28x = 13,711.68 × 3,946.32
  4. Step 4: Simplify right side
    9,143.28x = 54,110,677.02
  5. Step 5: Solve for x
    x = 54,110,677.02/9,143.28
  6. Step 6: Final answer
    x = 5,918.08

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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.