Home / 26,613.13-39,912.89-7,888.79

Finding the Fourth Proportional to 26,613.13, 39,912.89 and 7,888.79

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Solution

The fourth proportional to 26,613.13, 39,912.89 and 7,888.79 is: 11,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,613.13 : 39,912.89 = 7,888.79 : x
  2. Step 2: Convert to fraction form
    26,613.13/39,912.89 = 7,888.79/x
  3. Step 3: Cross multiply
    26,613.13x = 39,912.89 × 7,888.79
  4. Step 4: Simplify right side
    26,613.13x = 314,864,501.12
  5. Step 5: Solve for x
    x = 314,864,501.12/26,613.13
  6. Step 6: Final answer
    x = 11,831.17

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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.