Home / 10,074.80-13,904.52-7,716.08

Finding the Fourth Proportional to 10,074.80, 13,904.52 and 7,716.08

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Solution

The fourth proportional to 10,074.80, 13,904.52 and 7,716.08 is: 10,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.80 : 13,904.52 = 7,716.08 : x
  2. Step 2: Convert to fraction form
    10,074.80/13,904.52 = 7,716.08/x
  3. Step 3: Cross multiply
    10,074.80x = 13,904.52 × 7,716.08
  4. Step 4: Simplify right side
    10,074.80x = 107,288,388.68
  5. Step 5: Solve for x
    x = 107,288,388.68/10,074.80
  6. Step 6: Final answer
    x = 10,649.18

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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.