Home / 15,981.66-22,053.87-8,811.27

Finding the Fourth Proportional to 15,981.66, 22,053.87 and 8,811.27

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Solution

The fourth proportional to 15,981.66, 22,053.87 and 8,811.27 is: 12,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.66 : 22,053.87 = 8,811.27 : x
  2. Step 2: Convert to fraction form
    15,981.66/22,053.87 = 8,811.27/x
  3. Step 3: Cross multiply
    15,981.66x = 22,053.87 × 8,811.27
  4. Step 4: Simplify right side
    15,981.66x = 194,322,603.11
  5. Step 5: Solve for x
    x = 194,322,603.11/15,981.66
  6. Step 6: Final answer
    x = 12,159.10

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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.