Home / 8,487.10-11,713.56-5,130.34

Finding the Fourth Proportional to 8,487.10, 11,713.56 and 5,130.34

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Solution

The fourth proportional to 8,487.10, 11,713.56 and 5,130.34 is: 7,080.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.10 : 11,713.56 = 5,130.34 : x
  2. Step 2: Convert to fraction form
    8,487.10/11,713.56 = 5,130.34/x
  3. Step 3: Cross multiply
    8,487.10x = 11,713.56 × 5,130.34
  4. Step 4: Simplify right side
    8,487.10x = 60,094,545.41
  5. Step 5: Solve for x
    x = 60,094,545.41/8,487.10
  6. Step 6: Final answer
    x = 7,080.69

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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.