Home / 13,521.45-20,292.64-8,840.19

Finding the Fourth Proportional to 13,521.45, 20,292.64 and 8,840.19

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Solution

The fourth proportional to 13,521.45, 20,292.64 and 8,840.19 is: 13,267.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.45 : 20,292.64 = 8,840.19 : x
  2. Step 2: Convert to fraction form
    13,521.45/20,292.64 = 8,840.19/x
  3. Step 3: Cross multiply
    13,521.45x = 20,292.64 × 8,840.19
  4. Step 4: Simplify right side
    13,521.45x = 179,390,793.20
  5. Step 5: Solve for x
    x = 179,390,793.20/13,521.45
  6. Step 6: Final answer
    x = 13,267.13

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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.