Home / 8,621.80-11,897.63-4,845.11

Finding the Fourth Proportional to 8,621.80, 11,897.63 and 4,845.11

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Solution

The fourth proportional to 8,621.80, 11,897.63 and 4,845.11 is: 6,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.80 : 11,897.63 = 4,845.11 : x
  2. Step 2: Convert to fraction form
    8,621.80/11,897.63 = 4,845.11/x
  3. Step 3: Cross multiply
    8,621.80x = 11,897.63 × 4,845.11
  4. Step 4: Simplify right side
    8,621.80x = 57,645,301.86
  5. Step 5: Solve for x
    x = 57,645,301.86/8,621.80
  6. Step 6: Final answer
    x = 6,686.00

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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.