Home / 8,674.29-11,970.45-5,139.18

Finding the Fourth Proportional to 8,674.29, 11,970.45 and 5,139.18

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Solution

The fourth proportional to 8,674.29, 11,970.45 and 5,139.18 is: 7,092.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.29 : 11,970.45 = 5,139.18 : x
  2. Step 2: Convert to fraction form
    8,674.29/11,970.45 = 5,139.18/x
  3. Step 3: Cross multiply
    8,674.29x = 11,970.45 × 5,139.18
  4. Step 4: Simplify right side
    8,674.29x = 61,518,297.23
  5. Step 5: Solve for x
    x = 61,518,297.23/8,674.29
  6. Step 6: Final answer
    x = 7,092.03

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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.