Home / 12,117.48-18,178.66-4,326.10

Finding the Fourth Proportional to 12,117.48, 18,178.66 and 4,326.10

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Solution

The fourth proportional to 12,117.48, 18,178.66 and 4,326.10 is: 6,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.48 : 18,178.66 = 4,326.10 : x
  2. Step 2: Convert to fraction form
    12,117.48/18,178.66 = 4,326.10/x
  3. Step 3: Cross multiply
    12,117.48x = 18,178.66 × 4,326.10
  4. Step 4: Simplify right side
    12,117.48x = 78,642,701.03
  5. Step 5: Solve for x
    x = 78,642,701.03/12,117.48
  6. Step 6: Final answer
    x = 6,490.02

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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.