Home / 15,970.85-22,040.15-8,897.39

Finding the Fourth Proportional to 15,970.85, 22,040.15 and 8,897.39

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Solution

The fourth proportional to 15,970.85, 22,040.15 and 8,897.39 is: 12,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,970.85 : 22,040.15 = 8,897.39 : x
  2. Step 2: Convert to fraction form
    15,970.85/22,040.15 = 8,897.39/x
  3. Step 3: Cross multiply
    15,970.85x = 22,040.15 × 8,897.39
  4. Step 4: Simplify right side
    15,970.85x = 196,099,655.52
  5. Step 5: Solve for x
    x = 196,099,655.52/15,970.85
  6. Step 6: Final answer
    x = 12,278.60

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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.