Home / 12,291.12-18,439.02-6,741.45

Finding the Fourth Proportional to 12,291.12, 18,439.02 and 6,741.45

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Solution

The fourth proportional to 12,291.12, 18,439.02 and 6,741.45 is: 10,113.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.12 : 18,439.02 = 6,741.45 : x
  2. Step 2: Convert to fraction form
    12,291.12/18,439.02 = 6,741.45/x
  3. Step 3: Cross multiply
    12,291.12x = 18,439.02 × 6,741.45
  4. Step 4: Simplify right side
    12,291.12x = 124,305,731.38
  5. Step 5: Solve for x
    x = 124,305,731.38/12,291.12
  6. Step 6: Final answer
    x = 10,113.46

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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.