Home / 8,918.19-12,307.07-5,141.33

Finding the Fourth Proportional to 8,918.19, 12,307.07 and 5,141.33

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Solution

The fourth proportional to 8,918.19, 12,307.07 and 5,141.33 is: 7,095.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.19 : 12,307.07 = 5,141.33 : x
  2. Step 2: Convert to fraction form
    8,918.19/12,307.07 = 5,141.33/x
  3. Step 3: Cross multiply
    8,918.19x = 12,307.07 × 5,141.33
  4. Step 4: Simplify right side
    8,918.19x = 63,274,708.20
  5. Step 5: Solve for x
    x = 63,274,708.20/8,918.19
  6. Step 6: Final answer
    x = 7,095.02

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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.