Home / 8,320.27-12,528.91-6,144.21

Finding the Fourth Proportional to 8,320.27, 12,528.91 and 6,144.21

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Solution

The fourth proportional to 8,320.27, 12,528.91 and 6,144.21 is: 9,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.27 : 12,528.91 = 6,144.21 : x
  2. Step 2: Convert to fraction form
    8,320.27/12,528.91 = 6,144.21/x
  3. Step 3: Cross multiply
    8,320.27x = 12,528.91 × 6,144.21
  4. Step 4: Simplify right side
    8,320.27x = 76,980,254.11
  5. Step 5: Solve for x
    x = 76,980,254.11/8,320.27
  6. Step 6: Final answer
    x = 9,252.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.