Home / 15,790.80-23,657.40-12,853.20

Finding the Fourth Proportional to 15,790.80, 23,657.40 and 12,853.20

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Solution

The fourth proportional to 15,790.80, 23,657.40 and 12,853.20 is: 19,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.80 : 23,657.40 = 12,853.20 : x
  2. Step 2: Convert to fraction form
    15,790.80/23,657.40 = 12,853.20/x
  3. Step 3: Cross multiply
    15,790.80x = 23,657.40 × 12,853.20
  4. Step 4: Simplify right side
    15,790.80x = 304,073,293.68
  5. Step 5: Solve for x
    x = 304,073,293.68/15,790.80
  6. Step 6: Final answer
    x = 19,256.36

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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.