Home / 8,139.02-12,207.86-2,592.14

Finding the Fourth Proportional to 8,139.02, 12,207.86 and 2,592.14

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Solution

The fourth proportional to 8,139.02, 12,207.86 and 2,592.14 is: 3,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.02 : 12,207.86 = 2,592.14 : x
  2. Step 2: Convert to fraction form
    8,139.02/12,207.86 = 2,592.14/x
  3. Step 3: Cross multiply
    8,139.02x = 12,207.86 × 2,592.14
  4. Step 4: Simplify right side
    8,139.02x = 31,644,482.22
  5. Step 5: Solve for x
    x = 31,644,482.22/8,139.02
  6. Step 6: Final answer
    x = 3,888.00

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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.