Home / 9,135.50-12,607.02-4,943.78

Finding the Fourth Proportional to 9,135.50, 12,607.02 and 4,943.78

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Solution

The fourth proportional to 9,135.50, 12,607.02 and 4,943.78 is: 6,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.50 : 12,607.02 = 4,943.78 : x
  2. Step 2: Convert to fraction form
    9,135.50/12,607.02 = 4,943.78/x
  3. Step 3: Cross multiply
    9,135.50x = 12,607.02 × 4,943.78
  4. Step 4: Simplify right side
    9,135.50x = 62,326,333.34
  5. Step 5: Solve for x
    x = 62,326,333.34/9,135.50
  6. Step 6: Final answer
    x = 6,822.43

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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.