Home / 17,781.19-26,681.10-11,539.74

Finding the Fourth Proportional to 17,781.19, 26,681.10 and 11,539.74

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Solution

The fourth proportional to 17,781.19, 26,681.10 and 11,539.74 is: 17,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,781.19 : 26,681.10 = 11,539.74 : x
  2. Step 2: Convert to fraction form
    17,781.19/26,681.10 = 11,539.74/x
  3. Step 3: Cross multiply
    17,781.19x = 26,681.10 × 11,539.74
  4. Step 4: Simplify right side
    17,781.19x = 307,892,956.91
  5. Step 5: Solve for x
    x = 307,892,956.91/17,781.19
  6. Step 6: Final answer
    x = 17,315.66

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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.