Home / 7,538.57-10,403.85-4,182.47

Finding the Fourth Proportional to 7,538.57, 10,403.85 and 4,182.47

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Solution

The fourth proportional to 7,538.57, 10,403.85 and 4,182.47 is: 5,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.57 : 10,403.85 = 4,182.47 : x
  2. Step 2: Convert to fraction form
    7,538.57/10,403.85 = 4,182.47/x
  3. Step 3: Cross multiply
    7,538.57x = 10,403.85 × 4,182.47
  4. Step 4: Simplify right side
    7,538.57x = 43,513,717.58
  5. Step 5: Solve for x
    x = 43,513,717.58/7,538.57
  6. Step 6: Final answer
    x = 5,772.14

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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.