Home / 13,251.38-19,875.02-8,604.34

Finding the Fourth Proportional to 13,251.38, 19,875.02 and 8,604.34

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Solution

The fourth proportional to 13,251.38, 19,875.02 and 8,604.34 is: 12,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.38 : 19,875.02 = 8,604.34 : x
  2. Step 2: Convert to fraction form
    13,251.38/19,875.02 = 8,604.34/x
  3. Step 3: Cross multiply
    13,251.38x = 19,875.02 × 8,604.34
  4. Step 4: Simplify right side
    13,251.38x = 171,011,497.07
  5. Step 5: Solve for x
    x = 171,011,497.07/13,251.38
  6. Step 6: Final answer
    x = 12,905.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.