Home / 14,306.08-19,743.60-8,720.32

Finding the Fourth Proportional to 14,306.08, 19,743.60 and 8,720.32

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Solution

The fourth proportional to 14,306.08, 19,743.60 and 8,720.32 is: 12,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,306.08 : 19,743.60 = 8,720.32 : x
  2. Step 2: Convert to fraction form
    14,306.08/19,743.60 = 8,720.32/x
  3. Step 3: Cross multiply
    14,306.08x = 19,743.60 × 8,720.32
  4. Step 4: Simplify right side
    14,306.08x = 172,170,509.95
  5. Step 5: Solve for x
    x = 172,170,509.95/14,306.08
  6. Step 6: Final answer
    x = 12,034.78

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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.