Home / 15,609.11-21,541.14-8,895.83

Finding the Fourth Proportional to 15,609.11, 21,541.14 and 8,895.83

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Solution

The fourth proportional to 15,609.11, 21,541.14 and 8,895.83 is: 12,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.11 : 21,541.14 = 8,895.83 : x
  2. Step 2: Convert to fraction form
    15,609.11/21,541.14 = 8,895.83/x
  3. Step 3: Cross multiply
    15,609.11x = 21,541.14 × 8,895.83
  4. Step 4: Simplify right side
    15,609.11x = 191,626,211.74
  5. Step 5: Solve for x
    x = 191,626,211.74/15,609.11
  6. Step 6: Final answer
    x = 12,276.57

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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.