Home / 15,086.72-22,613.65-12,888.79

Finding the Fourth Proportional to 15,086.72, 22,613.65 and 12,888.79

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Solution

The fourth proportional to 15,086.72, 22,613.65 and 12,888.79 is: 19,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,086.72 : 22,613.65 = 12,888.79 : x
  2. Step 2: Convert to fraction form
    15,086.72/22,613.65 = 12,888.79/x
  3. Step 3: Cross multiply
    15,086.72x = 22,613.65 × 12,888.79
  4. Step 4: Simplify right side
    15,086.72x = 291,462,585.98
  5. Step 5: Solve for x
    x = 291,462,585.98/15,086.72
  6. Step 6: Final answer
    x = 19,319.15

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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.