Home / 9,701.12-13,387.16-5,722.40

Finding the Fourth Proportional to 9,701.12, 13,387.16 and 5,722.40

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Solution

The fourth proportional to 9,701.12, 13,387.16 and 5,722.40 is: 7,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.12 : 13,387.16 = 5,722.40 : x
  2. Step 2: Convert to fraction form
    9,701.12/13,387.16 = 5,722.40/x
  3. Step 3: Cross multiply
    9,701.12x = 13,387.16 × 5,722.40
  4. Step 4: Simplify right side
    9,701.12x = 76,606,684.38
  5. Step 5: Solve for x
    x = 76,606,684.38/9,701.12
  6. Step 6: Final answer
    x = 7,896.68

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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.