Home / 9,908.04-13,672.86-5,431.70

Finding the Fourth Proportional to 9,908.04, 13,672.86 and 5,431.70

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Solution

The fourth proportional to 9,908.04, 13,672.86 and 5,431.70 is: 7,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.04 : 13,672.86 = 5,431.70 : x
  2. Step 2: Convert to fraction form
    9,908.04/13,672.86 = 5,431.70/x
  3. Step 3: Cross multiply
    9,908.04x = 13,672.86 × 5,431.70
  4. Step 4: Simplify right side
    9,908.04x = 74,266,873.66
  5. Step 5: Solve for x
    x = 74,266,873.66/9,908.04
  6. Step 6: Final answer
    x = 7,495.62

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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.