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Finding the Fourth Proportional to 12,599.80, 17,384.78 and 10,590.85

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Solution

The fourth proportional to 12,599.80, 17,384.78 and 10,590.85 is: 14,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.80 : 17,384.78 = 10,590.85 : x
  2. Step 2: Convert to fraction form
    12,599.80/17,384.78 = 10,590.85/x
  3. Step 3: Cross multiply
    12,599.80x = 17,384.78 × 10,590.85
  4. Step 4: Simplify right side
    12,599.80x = 184,119,585.90
  5. Step 5: Solve for x
    x = 184,119,585.90/12,599.80
  6. Step 6: Final answer
    x = 14,612.89

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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.