Home / 15,302.63-21,117.35-8,587.73

Finding the Fourth Proportional to 15,302.63, 21,117.35 and 8,587.73

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Solution

The fourth proportional to 15,302.63, 21,117.35 and 8,587.73 is: 11,850.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.63 : 21,117.35 = 8,587.73 : x
  2. Step 2: Convert to fraction form
    15,302.63/21,117.35 = 8,587.73/x
  3. Step 3: Cross multiply
    15,302.63x = 21,117.35 × 8,587.73
  4. Step 4: Simplify right side
    15,302.63x = 181,350,174.38
  5. Step 5: Solve for x
    x = 181,350,174.38/15,302.63
  6. Step 6: Final answer
    x = 11,850.91

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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.