Home / 13,244.90-18,278.08-7,276.69

Finding the Fourth Proportional to 13,244.90, 18,278.08 and 7,276.69

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Solution

The fourth proportional to 13,244.90, 18,278.08 and 7,276.69 is: 10,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.90 : 18,278.08 = 7,276.69 : x
  2. Step 2: Convert to fraction form
    13,244.90/18,278.08 = 7,276.69/x
  3. Step 3: Cross multiply
    13,244.90x = 18,278.08 × 7,276.69
  4. Step 4: Simplify right side
    13,244.90x = 133,003,921.96
  5. Step 5: Solve for x
    x = 133,003,921.96/13,244.90
  6. Step 6: Final answer
    x = 10,041.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.