Home / 9,412.30-12,991.69-7,536.95

Finding the Fourth Proportional to 9,412.30, 12,991.69 and 7,536.95

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Solution

The fourth proportional to 9,412.30, 12,991.69 and 7,536.95 is: 10,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.30 : 12,991.69 = 7,536.95 : x
  2. Step 2: Convert to fraction form
    9,412.30/12,991.69 = 7,536.95/x
  3. Step 3: Cross multiply
    9,412.30x = 12,991.69 × 7,536.95
  4. Step 4: Simplify right side
    9,412.30x = 97,917,711.13
  5. Step 5: Solve for x
    x = 97,917,711.13/9,412.30
  6. Step 6: Final answer
    x = 10,403.16

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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.