Home / 17,585.10-26,389.80-12,658.95

Finding the Fourth Proportional to 17,585.10, 26,389.80 and 12,658.95

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Solution

The fourth proportional to 17,585.10, 26,389.80 and 12,658.95 is: 18,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,585.10 : 26,389.80 = 12,658.95 : x
  2. Step 2: Convert to fraction form
    17,585.10/26,389.80 = 12,658.95/x
  3. Step 3: Cross multiply
    17,585.10x = 26,389.80 × 12,658.95
  4. Step 4: Simplify right side
    17,585.10x = 334,067,158.71
  5. Step 5: Solve for x
    x = 334,067,158.71/17,585.10
  6. Step 6: Final answer
    x = 18,997.17

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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.