Home / 9,723.85-13,428.12-7,748.94

Finding the Fourth Proportional to 9,723.85, 13,428.12 and 7,748.94

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Solution

The fourth proportional to 9,723.85, 13,428.12 and 7,748.94 is: 10,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,723.85 : 13,428.12 = 7,748.94 : x
  2. Step 2: Convert to fraction form
    9,723.85/13,428.12 = 7,748.94/x
  3. Step 3: Cross multiply
    9,723.85x = 13,428.12 × 7,748.94
  4. Step 4: Simplify right side
    9,723.85x = 104,053,696.19
  5. Step 5: Solve for x
    x = 104,053,696.19/9,723.85
  6. Step 6: Final answer
    x = 10,700.87

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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.