Home / 8,728.48-12,045.28-4,952.39

Finding the Fourth Proportional to 8,728.48, 12,045.28 and 4,952.39

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Solution

The fourth proportional to 8,728.48, 12,045.28 and 4,952.39 is: 6,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.48 : 12,045.28 = 4,952.39 : x
  2. Step 2: Convert to fraction form
    8,728.48/12,045.28 = 4,952.39/x
  3. Step 3: Cross multiply
    8,728.48x = 12,045.28 × 4,952.39
  4. Step 4: Simplify right side
    8,728.48x = 59,652,851.61
  5. Step 5: Solve for x
    x = 59,652,851.61/8,728.48
  6. Step 6: Final answer
    x = 6,834.28

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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.