Home / 13,501.04-20,192.40-8,221.46

Finding the Fourth Proportional to 13,501.04, 20,192.40 and 8,221.46

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Solution

The fourth proportional to 13,501.04, 20,192.40 and 8,221.46 is: 12,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.04 : 20,192.40 = 8,221.46 : x
  2. Step 2: Convert to fraction form
    13,501.04/20,192.40 = 8,221.46/x
  3. Step 3: Cross multiply
    13,501.04x = 20,192.40 × 8,221.46
  4. Step 4: Simplify right side
    13,501.04x = 166,011,008.90
  5. Step 5: Solve for x
    x = 166,011,008.90/13,501.04
  6. Step 6: Final answer
    x = 12,296.16

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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.