Home / 13,218.83-18,242.01-7,250.55

Finding the Fourth Proportional to 13,218.83, 18,242.01 and 7,250.55

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Solution

The fourth proportional to 13,218.83, 18,242.01 and 7,250.55 is: 10,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.83 : 18,242.01 = 7,250.55 : x
  2. Step 2: Convert to fraction form
    13,218.83/18,242.01 = 7,250.55/x
  3. Step 3: Cross multiply
    13,218.83x = 18,242.01 × 7,250.55
  4. Step 4: Simplify right side
    13,218.83x = 132,264,537.20
  5. Step 5: Solve for x
    x = 132,264,537.20/13,218.83
  6. Step 6: Final answer
    x = 10,005.77

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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.