Home / 12,158.29-18,240.50-3,393.19

Finding the Fourth Proportional to 12,158.29, 18,240.50 and 3,393.19

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Solution

The fourth proportional to 12,158.29, 18,240.50 and 3,393.19 is: 5,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.29 : 18,240.50 = 3,393.19 : x
  2. Step 2: Convert to fraction form
    12,158.29/18,240.50 = 3,393.19/x
  3. Step 3: Cross multiply
    12,158.29x = 18,240.50 × 3,393.19
  4. Step 4: Simplify right side
    12,158.29x = 61,893,482.20
  5. Step 5: Solve for x
    x = 61,893,482.20/12,158.29
  6. Step 6: Final answer
    x = 5,090.64

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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.