Home / 9,964.29-13,749.65-5,487.77

Finding the Fourth Proportional to 9,964.29, 13,749.65 and 5,487.77

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Solution

The fourth proportional to 9,964.29, 13,749.65 and 5,487.77 is: 7,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.29 : 13,749.65 = 5,487.77 : x
  2. Step 2: Convert to fraction form
    9,964.29/13,749.65 = 5,487.77/x
  3. Step 3: Cross multiply
    9,964.29x = 13,749.65 × 5,487.77
  4. Step 4: Simplify right side
    9,964.29x = 75,454,916.78
  5. Step 5: Solve for x
    x = 75,454,916.78/9,964.29
  6. Step 6: Final answer
    x = 7,572.53

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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.