Home / 9,854.28-13,598.79-5,378.11

Finding the Fourth Proportional to 9,854.28, 13,598.79 and 5,378.11

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Solution

The fourth proportional to 9,854.28, 13,598.79 and 5,378.11 is: 7,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.28 : 13,598.79 = 5,378.11 : x
  2. Step 2: Convert to fraction form
    9,854.28/13,598.79 = 5,378.11/x
  3. Step 3: Cross multiply
    9,854.28x = 13,598.79 × 5,378.11
  4. Step 4: Simplify right side
    9,854.28x = 73,135,754.49
  5. Step 5: Solve for x
    x = 73,135,754.49/9,854.28
  6. Step 6: Final answer
    x = 7,421.72

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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.