Home / 7,874.19-10,864.80-5,985.27

Finding the Fourth Proportional to 7,874.19, 10,864.80 and 5,985.27

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Solution

The fourth proportional to 7,874.19, 10,864.80 and 5,985.27 is: 8,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.19 : 10,864.80 = 5,985.27 : x
  2. Step 2: Convert to fraction form
    7,874.19/10,864.80 = 5,985.27/x
  3. Step 3: Cross multiply
    7,874.19x = 10,864.80 × 5,985.27
  4. Step 4: Simplify right side
    7,874.19x = 65,028,761.50
  5. Step 5: Solve for x
    x = 65,028,761.50/7,874.19
  6. Step 6: Final answer
    x = 8,258.47

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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.