Home / 8,724.35-12,040.61-5,187.53

Finding the Fourth Proportional to 8,724.35, 12,040.61 and 5,187.53

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Solution

The fourth proportional to 8,724.35, 12,040.61 and 5,187.53 is: 7,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.35 : 12,040.61 = 5,187.53 : x
  2. Step 2: Convert to fraction form
    8,724.35/12,040.61 = 5,187.53/x
  3. Step 3: Cross multiply
    8,724.35x = 12,040.61 × 5,187.53
  4. Step 4: Simplify right side
    8,724.35x = 62,460,939.45
  5. Step 5: Solve for x
    x = 62,460,939.45/8,724.35
  6. Step 6: Final answer
    x = 7,159.38

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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.