Home / 15,971.04-22,040-8,897.44

Finding the Fourth Proportional to 15,971.04, 22,040 and 8,897.44

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Solution

The fourth proportional to 15,971.04, 22,040 and 8,897.44 is: 12,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.04 : 22,040 = 8,897.44 : x
  2. Step 2: Convert to fraction form
    15,971.04/22,040 = 8,897.44/x
  3. Step 3: Cross multiply
    15,971.04x = 22,040 × 8,897.44
  4. Step 4: Simplify right side
    15,971.04x = 196,099,577.60
  5. Step 5: Solve for x
    x = 196,099,577.60/15,971.04
  6. Step 6: Final answer
    x = 12,278.45

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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.