Home / 10,433.28-14,398.08-5,717.40

Finding the Fourth Proportional to 10,433.28, 14,398.08 and 5,717.40

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Solution

The fourth proportional to 10,433.28, 14,398.08 and 5,717.40 is: 7,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,433.28 : 14,398.08 = 5,717.40 : x
  2. Step 2: Convert to fraction form
    10,433.28/14,398.08 = 5,717.40/x
  3. Step 3: Cross multiply
    10,433.28x = 14,398.08 × 5,717.40
  4. Step 4: Simplify right side
    10,433.28x = 82,319,582.59
  5. Step 5: Solve for x
    x = 82,319,582.59/10,433.28
  6. Step 6: Final answer
    x = 7,890.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.