Home / 15,972.40-22,041.94-8,899.08

Finding the Fourth Proportional to 15,972.40, 22,041.94 and 8,899.08

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Solution

The fourth proportional to 15,972.40, 22,041.94 and 8,899.08 is: 12,280.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.40 : 22,041.94 = 8,899.08 : x
  2. Step 2: Convert to fraction form
    15,972.40/22,041.94 = 8,899.08/x
  3. Step 3: Cross multiply
    15,972.40x = 22,041.94 × 8,899.08
  4. Step 4: Simplify right side
    15,972.40x = 196,152,987.42
  5. Step 5: Solve for x
    x = 196,152,987.42/15,972.40
  6. Step 6: Final answer
    x = 12,280.75

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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.