Home / 8,854.28-13,280.36-2,931.17

Finding the Fourth Proportional to 8,854.28, 13,280.36 and 2,931.17

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Solution

The fourth proportional to 8,854.28, 13,280.36 and 2,931.17 is: 4,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.28 : 13,280.36 = 2,931.17 : x
  2. Step 2: Convert to fraction form
    8,854.28/13,280.36 = 2,931.17/x
  3. Step 3: Cross multiply
    8,854.28x = 13,280.36 × 2,931.17
  4. Step 4: Simplify right side
    8,854.28x = 38,926,911.76
  5. Step 5: Solve for x
    x = 38,926,911.76/8,854.28
  6. Step 6: Final answer
    x = 4,396.40

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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.