Home / 15,323.72-21,167.53-12,008.39

Finding the Fourth Proportional to 15,323.72, 21,167.53 and 12,008.39

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Solution

The fourth proportional to 15,323.72, 21,167.53 and 12,008.39 is: 16,587.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.72 : 21,167.53 = 12,008.39 : x
  2. Step 2: Convert to fraction form
    15,323.72/21,167.53 = 12,008.39/x
  3. Step 3: Cross multiply
    15,323.72x = 21,167.53 × 12,008.39
  4. Step 4: Simplify right side
    15,323.72x = 254,187,819.72
  5. Step 5: Solve for x
    x = 254,187,819.72/15,323.72
  6. Step 6: Final answer
    x = 16,587.87

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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.