Home / 13,666.12-20,478.30-7,094.44

Finding the Fourth Proportional to 13,666.12, 20,478.30 and 7,094.44

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Solution

The fourth proportional to 13,666.12, 20,478.30 and 7,094.44 is: 10,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.12 : 20,478.30 = 7,094.44 : x
  2. Step 2: Convert to fraction form
    13,666.12/20,478.30 = 7,094.44/x
  3. Step 3: Cross multiply
    13,666.12x = 20,478.30 × 7,094.44
  4. Step 4: Simplify right side
    13,666.12x = 145,282,070.65
  5. Step 5: Solve for x
    x = 145,282,070.65/13,666.12
  6. Step 6: Final answer
    x = 10,630.82

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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.