Home / 19,009.68-28,514.16-5,158.80

Finding the Fourth Proportional to 19,009.68, 28,514.16 and 5,158.80

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Solution

The fourth proportional to 19,009.68, 28,514.16 and 5,158.80 is: 7,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.68 : 28,514.16 = 5,158.80 : x
  2. Step 2: Convert to fraction form
    19,009.68/28,514.16 = 5,158.80/x
  3. Step 3: Cross multiply
    19,009.68x = 28,514.16 × 5,158.80
  4. Step 4: Simplify right side
    19,009.68x = 147,098,848.61
  5. Step 5: Solve for x
    x = 147,098,848.61/19,009.68
  6. Step 6: Final answer
    x = 7,738.10

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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.