Home / 8,437.02-12,642.56-3,240.06

Finding the Fourth Proportional to 8,437.02, 12,642.56 and 3,240.06

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Solution

The fourth proportional to 8,437.02, 12,642.56 and 3,240.06 is: 4,855.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.02 : 12,642.56 = 3,240.06 : x
  2. Step 2: Convert to fraction form
    8,437.02/12,642.56 = 3,240.06/x
  3. Step 3: Cross multiply
    8,437.02x = 12,642.56 × 3,240.06
  4. Step 4: Simplify right side
    8,437.02x = 40,962,652.95
  5. Step 5: Solve for x
    x = 40,962,652.95/8,437.02
  6. Step 6: Final answer
    x = 4,855.11

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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.