Home / 9,620.98-13,278.93-5,644.18

Finding the Fourth Proportional to 9,620.98, 13,278.93 and 5,644.18

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Solution

The fourth proportional to 9,620.98, 13,278.93 and 5,644.18 is: 7,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.98 : 13,278.93 = 5,644.18 : x
  2. Step 2: Convert to fraction form
    9,620.98/13,278.93 = 5,644.18/x
  3. Step 3: Cross multiply
    9,620.98x = 13,278.93 × 5,644.18
  4. Step 4: Simplify right side
    9,620.98x = 74,948,671.13
  5. Step 5: Solve for x
    x = 74,948,671.13/9,620.98
  6. Step 6: Final answer
    x = 7,790.13

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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.