Home / 11,073.28-15,281.28-6,358.40

Finding the Fourth Proportional to 11,073.28, 15,281.28 and 6,358.40

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Solution

The fourth proportional to 11,073.28, 15,281.28 and 6,358.40 is: 8,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,073.28 : 15,281.28 = 6,358.40 : x
  2. Step 2: Convert to fraction form
    11,073.28/15,281.28 = 6,358.40/x
  3. Step 3: Cross multiply
    11,073.28x = 15,281.28 × 6,358.40
  4. Step 4: Simplify right side
    11,073.28x = 97,164,490.75
  5. Step 5: Solve for x
    x = 97,164,490.75/11,073.28
  6. Step 6: Final answer
    x = 8,774.68

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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.