Home / 9,928.98-13,703.08-5,680.43

Finding the Fourth Proportional to 9,928.98, 13,703.08 and 5,680.43

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Solution

The fourth proportional to 9,928.98, 13,703.08 and 5,680.43 is: 7,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.98 : 13,703.08 = 5,680.43 : x
  2. Step 2: Convert to fraction form
    9,928.98/13,703.08 = 5,680.43/x
  3. Step 3: Cross multiply
    9,928.98x = 13,703.08 × 5,680.43
  4. Step 4: Simplify right side
    9,928.98x = 77,839,386.72
  5. Step 5: Solve for x
    x = 77,839,386.72/9,928.98
  6. Step 6: Final answer
    x = 7,839.62

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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.