Home / 12,837.31-17,713.85-7,530.19

Finding the Fourth Proportional to 12,837.31, 17,713.85 and 7,530.19

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Solution

The fourth proportional to 12,837.31, 17,713.85 and 7,530.19 is: 10,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.31 : 17,713.85 = 7,530.19 : x
  2. Step 2: Convert to fraction form
    12,837.31/17,713.85 = 7,530.19/x
  3. Step 3: Cross multiply
    12,837.31x = 17,713.85 × 7,530.19
  4. Step 4: Simplify right side
    12,837.31x = 133,388,574.20
  5. Step 5: Solve for x
    x = 133,388,574.20/12,837.31
  6. Step 6: Final answer
    x = 10,390.70

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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.