Home / 8,881.19-12,256.40-5,105.54

Finding the Fourth Proportional to 8,881.19, 12,256.40 and 5,105.54

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Solution

The fourth proportional to 8,881.19, 12,256.40 and 5,105.54 is: 7,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.19 : 12,256.40 = 5,105.54 : x
  2. Step 2: Convert to fraction form
    8,881.19/12,256.40 = 5,105.54/x
  3. Step 3: Cross multiply
    8,881.19x = 12,256.40 × 5,105.54
  4. Step 4: Simplify right side
    8,881.19x = 62,575,583.86
  5. Step 5: Solve for x
    x = 62,575,583.86/8,881.19
  6. Step 6: Final answer
    x = 7,045.86

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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.