Home / 13,521.80-20,293.16-8,840.54

Finding the Fourth Proportional to 13,521.80, 20,293.16 and 8,840.54

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Solution

The fourth proportional to 13,521.80, 20,293.16 and 8,840.54 is: 13,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.80 : 20,293.16 = 8,840.54 : x
  2. Step 2: Convert to fraction form
    13,521.80/20,293.16 = 8,840.54/x
  3. Step 3: Cross multiply
    13,521.80x = 20,293.16 × 8,840.54
  4. Step 4: Simplify right side
    13,521.80x = 179,402,347.04
  5. Step 5: Solve for x
    x = 179,402,347.04/13,521.80
  6. Step 6: Final answer
    x = 13,267.64

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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.