Home / 9,729.70-13,426.43-5,751.18

Finding the Fourth Proportional to 9,729.70, 13,426.43 and 5,751.18

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Solution

The fourth proportional to 9,729.70, 13,426.43 and 5,751.18 is: 7,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.70 : 13,426.43 = 5,751.18 : x
  2. Step 2: Convert to fraction form
    9,729.70/13,426.43 = 5,751.18/x
  3. Step 3: Cross multiply
    9,729.70x = 13,426.43 × 5,751.18
  4. Step 4: Simplify right side
    9,729.70x = 77,217,830.07
  5. Step 5: Solve for x
    x = 77,217,830.07/9,729.70
  6. Step 6: Final answer
    x = 7,936.30

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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.