Home / 8,240.70-12,357.72-5,116.08

Finding the Fourth Proportional to 8,240.70, 12,357.72 and 5,116.08

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Solution

The fourth proportional to 8,240.70, 12,357.72 and 5,116.08 is: 7,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.70 : 12,357.72 = 5,116.08 : x
  2. Step 2: Convert to fraction form
    8,240.70/12,357.72 = 5,116.08/x
  3. Step 3: Cross multiply
    8,240.70x = 12,357.72 × 5,116.08
  4. Step 4: Simplify right side
    8,240.70x = 63,223,084.14
  5. Step 5: Solve for x
    x = 63,223,084.14/8,240.70
  6. Step 6: Final answer
    x = 7,672.05

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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.