Home / 37,154.56-55,720.14-12,188.79

Finding the Fourth Proportional to 37,154.56, 55,720.14 and 12,188.79

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Solution

The fourth proportional to 37,154.56, 55,720.14 and 12,188.79 is: 18,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,154.56 : 55,720.14 = 12,188.79 : x
  2. Step 2: Convert to fraction form
    37,154.56/55,720.14 = 12,188.79/x
  3. Step 3: Cross multiply
    37,154.56x = 55,720.14 × 12,188.79
  4. Step 4: Simplify right side
    37,154.56x = 679,161,323.56
  5. Step 5: Solve for x
    x = 679,161,323.56/37,154.56
  6. Step 6: Final answer
    x = 18,279.35

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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.