Home / 8,647.31-12,970.20-2,407.44

Finding the Fourth Proportional to 8,647.31, 12,970.20 and 2,407.44

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Solution

The fourth proportional to 8,647.31, 12,970.20 and 2,407.44 is: 3,610.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.31 : 12,970.20 = 2,407.44 : x
  2. Step 2: Convert to fraction form
    8,647.31/12,970.20 = 2,407.44/x
  3. Step 3: Cross multiply
    8,647.31x = 12,970.20 × 2,407.44
  4. Step 4: Simplify right side
    8,647.31x = 31,224,978.29
  5. Step 5: Solve for x
    x = 31,224,978.29/8,647.31
  6. Step 6: Final answer
    x = 3,610.95

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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.