Home / 18,926.60-26,129.18-11,374.76

Finding the Fourth Proportional to 18,926.60, 26,129.18 and 11,374.76

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Solution

The fourth proportional to 18,926.60, 26,129.18 and 11,374.76 is: 15,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.60 : 26,129.18 = 11,374.76 : x
  2. Step 2: Convert to fraction form
    18,926.60/26,129.18 = 11,374.76/x
  3. Step 3: Cross multiply
    18,926.60x = 26,129.18 × 11,374.76
  4. Step 4: Simplify right side
    18,926.60x = 297,213,159.95
  5. Step 5: Solve for x
    x = 297,213,159.95/18,926.60
  6. Step 6: Final answer
    x = 15,703.47

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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.