Home / 12,079.29-18,123.25-7,345.08

Finding the Fourth Proportional to 12,079.29, 18,123.25 and 7,345.08

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Solution

The fourth proportional to 12,079.29, 18,123.25 and 7,345.08 is: 11,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.29 : 18,123.25 = 7,345.08 : x
  2. Step 2: Convert to fraction form
    12,079.29/18,123.25 = 7,345.08/x
  3. Step 3: Cross multiply
    12,079.29x = 18,123.25 × 7,345.08
  4. Step 4: Simplify right side
    12,079.29x = 133,116,702.90
  5. Step 5: Solve for x
    x = 133,116,702.90/12,079.29
  6. Step 6: Final answer
    x = 11,020.24

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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.