Home / 15,351.80-23,003.40-12,873.20

Finding the Fourth Proportional to 15,351.80, 23,003.40 and 12,873.20

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Solution

The fourth proportional to 15,351.80, 23,003.40 and 12,873.20 is: 19,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.80 : 23,003.40 = 12,873.20 : x
  2. Step 2: Convert to fraction form
    15,351.80/23,003.40 = 12,873.20/x
  3. Step 3: Cross multiply
    15,351.80x = 23,003.40 × 12,873.20
  4. Step 4: Simplify right side
    15,351.80x = 296,127,368.88
  5. Step 5: Solve for x
    x = 296,127,368.88/15,351.80
  6. Step 6: Final answer
    x = 19,289.42

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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.