Home / 8,898.24-12,280.68-5,363.40

Finding the Fourth Proportional to 8,898.24, 12,280.68 and 5,363.40

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Solution

The fourth proportional to 8,898.24, 12,280.68 and 5,363.40 is: 7,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.24 : 12,280.68 = 5,363.40 : x
  2. Step 2: Convert to fraction form
    8,898.24/12,280.68 = 5,363.40/x
  3. Step 3: Cross multiply
    8,898.24x = 12,280.68 × 5,363.40
  4. Step 4: Simplify right side
    8,898.24x = 65,866,199.11
  5. Step 5: Solve for x
    x = 65,866,199.11/8,898.24
  6. Step 6: Final answer
    x = 7,402.16

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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.