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Finding the Fourth Proportional to 18,637, 25,719.06 and 10,253.50

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Solution

The fourth proportional to 18,637, 25,719.06 and 10,253.50 is: 14,149.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637 : 25,719.06 = 10,253.50 : x
  2. Step 2: Convert to fraction form
    18,637/25,719.06 = 10,253.50/x
  3. Step 3: Cross multiply
    18,637x = 25,719.06 × 10,253.50
  4. Step 4: Simplify right side
    18,637x = 263,710,381.71
  5. Step 5: Solve for x
    x = 263,710,381.71/18,637
  6. Step 6: Final answer
    x = 14,149.83

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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.