Home / 15,108.50-22,590.63-13,785.08

Finding the Fourth Proportional to 15,108.50, 22,590.63 and 13,785.08

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Solution

The fourth proportional to 15,108.50, 22,590.63 and 13,785.08 is: 20,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.50 : 22,590.63 = 13,785.08 : x
  2. Step 2: Convert to fraction form
    15,108.50/22,590.63 = 13,785.08/x
  3. Step 3: Cross multiply
    15,108.50x = 22,590.63 × 13,785.08
  4. Step 4: Simplify right side
    15,108.50x = 311,413,641.80
  5. Step 5: Solve for x
    x = 311,413,641.80/15,108.50
  6. Step 6: Final answer
    x = 20,611.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.