Home / 19,423.68-26,781.76-13,294.34

Finding the Fourth Proportional to 19,423.68, 26,781.76 and 13,294.34

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Solution

The fourth proportional to 19,423.68, 26,781.76 and 13,294.34 is: 18,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,423.68 : 26,781.76 = 13,294.34 : x
  2. Step 2: Convert to fraction form
    19,423.68/26,781.76 = 13,294.34/x
  3. Step 3: Cross multiply
    19,423.68x = 26,781.76 × 13,294.34
  4. Step 4: Simplify right side
    19,423.68x = 356,045,919.64
  5. Step 5: Solve for x
    x = 356,045,919.64/19,423.68
  6. Step 6: Final answer
    x = 18,330.50

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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.