Home / 15,981.30-22,053.74-8,907.57

Finding the Fourth Proportional to 15,981.30, 22,053.74 and 8,907.57

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Solution

The fourth proportional to 15,981.30, 22,053.74 and 8,907.57 is: 12,292.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.30 : 22,053.74 = 8,907.57 : x
  2. Step 2: Convert to fraction form
    15,981.30/22,053.74 = 8,907.57/x
  3. Step 3: Cross multiply
    15,981.30x = 22,053.74 × 8,907.57
  4. Step 4: Simplify right side
    15,981.30x = 196,445,188.27
  5. Step 5: Solve for x
    x = 196,445,188.27/15,981.30
  6. Step 6: Final answer
    x = 12,292.19

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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.