Home / 15,756.65-23,638.30-13,177.61

Finding the Fourth Proportional to 15,756.65, 23,638.30 and 13,177.61

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Solution

The fourth proportional to 15,756.65, 23,638.30 and 13,177.61 is: 19,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.65 : 23,638.30 = 13,177.61 : x
  2. Step 2: Convert to fraction form
    15,756.65/23,638.30 = 13,177.61/x
  3. Step 3: Cross multiply
    15,756.65x = 23,638.30 × 13,177.61
  4. Step 4: Simplify right side
    15,756.65x = 311,496,298.46
  5. Step 5: Solve for x
    x = 311,496,298.46/15,756.65
  6. Step 6: Final answer
    x = 19,769.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.