Home / 8,729.30-13,110.75-7,482.74

Finding the Fourth Proportional to 8,729.30, 13,110.75 and 7,482.74

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Solution

The fourth proportional to 8,729.30, 13,110.75 and 7,482.74 is: 11,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.30 : 13,110.75 = 7,482.74 : x
  2. Step 2: Convert to fraction form
    8,729.30/13,110.75 = 7,482.74/x
  3. Step 3: Cross multiply
    8,729.30x = 13,110.75 × 7,482.74
  4. Step 4: Simplify right side
    8,729.30x = 98,104,333.46
  5. Step 5: Solve for x
    x = 98,104,333.46/8,729.30
  6. Step 6: Final answer
    x = 11,238.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.