Home / 15,117.33-20,861.24-8,402.93

Finding the Fourth Proportional to 15,117.33, 20,861.24 and 8,402.93

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Solution

The fourth proportional to 15,117.33, 20,861.24 and 8,402.93 is: 11,595.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.33 : 20,861.24 = 8,402.93 : x
  2. Step 2: Convert to fraction form
    15,117.33/20,861.24 = 8,402.93/x
  3. Step 3: Cross multiply
    15,117.33x = 20,861.24 × 8,402.93
  4. Step 4: Simplify right side
    15,117.33x = 175,295,393.11
  5. Step 5: Solve for x
    x = 175,295,393.11/15,117.33
  6. Step 6: Final answer
    x = 11,595.66

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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.