Home / 15,780.74-23,673.36-5,247.30

Finding the Fourth Proportional to 15,780.74, 23,673.36 and 5,247.30

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Solution

The fourth proportional to 15,780.74, 23,673.36 and 5,247.30 is: 7,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.74 : 23,673.36 = 5,247.30 : x
  2. Step 2: Convert to fraction form
    15,780.74/23,673.36 = 5,247.30/x
  3. Step 3: Cross multiply
    15,780.74x = 23,673.36 × 5,247.30
  4. Step 4: Simplify right side
    15,780.74x = 124,221,221.93
  5. Step 5: Solve for x
    x = 124,221,221.93/15,780.74
  6. Step 6: Final answer
    x = 7,871.70

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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.