Home / 15,988.06-22,043.91-13,145.50

Finding the Fourth Proportional to 15,988.06, 22,043.91 and 13,145.50

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Solution

The fourth proportional to 15,988.06, 22,043.91 and 13,145.50 is: 18,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.06 : 22,043.91 = 13,145.50 : x
  2. Step 2: Convert to fraction form
    15,988.06/22,043.91 = 13,145.50/x
  3. Step 3: Cross multiply
    15,988.06x = 22,043.91 × 13,145.50
  4. Step 4: Simplify right side
    15,988.06x = 289,778,218.91
  5. Step 5: Solve for x
    x = 289,778,218.91/15,988.06
  6. Step 6: Final answer
    x = 18,124.66

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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.