Home / 18,686.08-28,045.52-10,375.48

Finding the Fourth Proportional to 18,686.08, 28,045.52 and 10,375.48

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Solution

The fourth proportional to 18,686.08, 28,045.52 and 10,375.48 is: 15,572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.08 : 28,045.52 = 10,375.48 : x
  2. Step 2: Convert to fraction form
    18,686.08/28,045.52 = 10,375.48/x
  3. Step 3: Cross multiply
    18,686.08x = 28,045.52 × 10,375.48
  4. Step 4: Simplify right side
    18,686.08x = 290,985,539.74
  5. Step 5: Solve for x
    x = 290,985,539.74/18,686.08
  6. Step 6: Final answer
    x = 15,572.32

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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.