Home / 8,985.11-12,389.18-7,566.62

Finding the Fourth Proportional to 8,985.11, 12,389.18 and 7,566.62

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Solution

The fourth proportional to 8,985.11, 12,389.18 and 7,566.62 is: 10,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.11 : 12,389.18 = 7,566.62 : x
  2. Step 2: Convert to fraction form
    8,985.11/12,389.18 = 7,566.62/x
  3. Step 3: Cross multiply
    8,985.11x = 12,389.18 × 7,566.62
  4. Step 4: Simplify right side
    8,985.11x = 93,744,179.34
  5. Step 5: Solve for x
    x = 93,744,179.34/8,985.11
  6. Step 6: Final answer
    x = 10,433.28

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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.