Home / 8,677.10-11,973.54-5,139.62

Finding the Fourth Proportional to 8,677.10, 11,973.54 and 5,139.62

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Solution

The fourth proportional to 8,677.10, 11,973.54 and 5,139.62 is: 7,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.10 : 11,973.54 = 5,139.62 : x
  2. Step 2: Convert to fraction form
    8,677.10/11,973.54 = 5,139.62/x
  3. Step 3: Cross multiply
    8,677.10x = 11,973.54 × 5,139.62
  4. Step 4: Simplify right side
    8,677.10x = 61,539,445.65
  5. Step 5: Solve for x
    x = 61,539,445.65/8,677.10
  6. Step 6: Final answer
    x = 7,092.17

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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.