Home / 15,001.42-20,703.17-8,287.63

Finding the Fourth Proportional to 15,001.42, 20,703.17 and 8,287.63

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Solution

The fourth proportional to 15,001.42, 20,703.17 and 8,287.63 is: 11,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.42 : 20,703.17 = 8,287.63 : x
  2. Step 2: Convert to fraction form
    15,001.42/20,703.17 = 8,287.63/x
  3. Step 3: Cross multiply
    15,001.42x = 20,703.17 × 8,287.63
  4. Step 4: Simplify right side
    15,001.42x = 171,580,274.89
  5. Step 5: Solve for x
    x = 171,580,274.89/15,001.42
  6. Step 6: Final answer
    x = 11,437.60

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Double scale
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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.