Home / 12,403.13-17,117.33-7,099.65

Finding the Fourth Proportional to 12,403.13, 17,117.33 and 7,099.65

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Solution

The fourth proportional to 12,403.13, 17,117.33 and 7,099.65 is: 9,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.13 : 17,117.33 = 7,099.65 : x
  2. Step 2: Convert to fraction form
    12,403.13/17,117.33 = 7,099.65/x
  3. Step 3: Cross multiply
    12,403.13x = 17,117.33 × 7,099.65
  4. Step 4: Simplify right side
    12,403.13x = 121,527,016.44
  5. Step 5: Solve for x
    x = 121,527,016.44/12,403.13
  6. Step 6: Final answer
    x = 9,798.10

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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.