Home / 15,609.76-21,541.86-8,536.70

Finding the Fourth Proportional to 15,609.76, 21,541.86 and 8,536.70

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Solution

The fourth proportional to 15,609.76, 21,541.86 and 8,536.70 is: 11,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.76 : 21,541.86 = 8,536.70 : x
  2. Step 2: Convert to fraction form
    15,609.76/21,541.86 = 8,536.70/x
  3. Step 3: Cross multiply
    15,609.76x = 21,541.86 × 8,536.70
  4. Step 4: Simplify right side
    15,609.76x = 183,896,450.12
  5. Step 5: Solve for x
    x = 183,896,450.12/15,609.76
  6. Step 6: Final answer
    x = 11,780.87

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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.