Home / 9,871.29-13,622.13-5,394.93

Finding the Fourth Proportional to 9,871.29, 13,622.13 and 5,394.93

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Solution

The fourth proportional to 9,871.29, 13,622.13 and 5,394.93 is: 7,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.29 : 13,622.13 = 5,394.93 : x
  2. Step 2: Convert to fraction form
    9,871.29/13,622.13 = 5,394.93/x
  3. Step 3: Cross multiply
    9,871.29x = 13,622.13 × 5,394.93
  4. Step 4: Simplify right side
    9,871.29x = 73,490,437.80
  5. Step 5: Solve for x
    x = 73,490,437.80/9,871.29
  6. Step 6: Final answer
    x = 7,444.87

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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.