Home / 12,928.80-17,842.56-7,263.84

Finding the Fourth Proportional to 12,928.80, 17,842.56 and 7,263.84

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Solution

The fourth proportional to 12,928.80, 17,842.56 and 7,263.84 is: 10,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.80 : 17,842.56 = 7,263.84 : x
  2. Step 2: Convert to fraction form
    12,928.80/17,842.56 = 7,263.84/x
  3. Step 3: Cross multiply
    12,928.80x = 17,842.56 × 7,263.84
  4. Step 4: Simplify right side
    12,928.80x = 129,605,501.03
  5. Step 5: Solve for x
    x = 129,605,501.03/12,928.80
  6. Step 6: Final answer
    x = 10,024.56

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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.