Home / 19,363.20-26,719.65-10,864.15

Finding the Fourth Proportional to 19,363.20, 26,719.65 and 10,864.15

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Solution

The fourth proportional to 19,363.20, 26,719.65 and 10,864.15 is: 14,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.20 : 26,719.65 = 10,864.15 : x
  2. Step 2: Convert to fraction form
    19,363.20/26,719.65 = 10,864.15/x
  3. Step 3: Cross multiply
    19,363.20x = 26,719.65 × 10,864.15
  4. Step 4: Simplify right side
    19,363.20x = 290,286,285.55
  5. Step 5: Solve for x
    x = 290,286,285.55/19,363.20
  6. Step 6: Final answer
    x = 14,991.65

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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.