Home / 19,459.74-26,855.10-11,508.78

Finding the Fourth Proportional to 19,459.74, 26,855.10 and 11,508.78

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Solution

The fourth proportional to 19,459.74, 26,855.10 and 11,508.78 is: 15,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,459.74 : 26,855.10 = 11,508.78 : x
  2. Step 2: Convert to fraction form
    19,459.74/26,855.10 = 11,508.78/x
  3. Step 3: Cross multiply
    19,459.74x = 26,855.10 × 11,508.78
  4. Step 4: Simplify right side
    19,459.74x = 309,069,437.78
  5. Step 5: Solve for x
    x = 309,069,437.78/19,459.74
  6. Step 6: Final answer
    x = 15,882.51

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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.