Home / 9,620.04-13,275.17-5,640.89

Finding the Fourth Proportional to 9,620.04, 13,275.17 and 5,640.89

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Solution

The fourth proportional to 9,620.04, 13,275.17 and 5,640.89 is: 7,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.04 : 13,275.17 = 5,640.89 : x
  2. Step 2: Convert to fraction form
    9,620.04/13,275.17 = 5,640.89/x
  3. Step 3: Cross multiply
    9,620.04x = 13,275.17 × 5,640.89
  4. Step 4: Simplify right side
    9,620.04x = 74,883,759.08
  5. Step 5: Solve for x
    x = 74,883,759.08/9,620.04
  6. Step 6: Final answer
    x = 7,784.14

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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.