Home / 15,975.72-22,047.76-8,806.91

Finding the Fourth Proportional to 15,975.72, 22,047.76 and 8,806.91

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Solution

The fourth proportional to 15,975.72, 22,047.76 and 8,806.91 is: 12,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,975.72 : 22,047.76 = 8,806.91 : x
  2. Step 2: Convert to fraction form
    15,975.72/22,047.76 = 8,806.91/x
  3. Step 3: Cross multiply
    15,975.72x = 22,047.76 × 8,806.91
  4. Step 4: Simplify right side
    15,975.72x = 194,172,660.04
  5. Step 5: Solve for x
    x = 194,172,660.04/15,975.72
  6. Step 6: Final answer
    x = 12,154.23

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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.