Home / 13,079.17-18,040.12-8,601.49

Finding the Fourth Proportional to 13,079.17, 18,040.12 and 8,601.49

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Solution

The fourth proportional to 13,079.17, 18,040.12 and 8,601.49 is: 11,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.17 : 18,040.12 = 8,601.49 : x
  2. Step 2: Convert to fraction form
    13,079.17/18,040.12 = 8,601.49/x
  3. Step 3: Cross multiply
    13,079.17x = 18,040.12 × 8,601.49
  4. Step 4: Simplify right side
    13,079.17x = 155,171,967.63
  5. Step 5: Solve for x
    x = 155,171,967.63/13,079.17
  6. Step 6: Final answer
    x = 11,864.05

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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.