Home / 10,011.38-13,815.16-5,534.87

Finding the Fourth Proportional to 10,011.38, 13,815.16 and 5,534.87

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Solution

The fourth proportional to 10,011.38, 13,815.16 and 5,534.87 is: 7,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.38 : 13,815.16 = 5,534.87 : x
  2. Step 2: Convert to fraction form
    10,011.38/13,815.16 = 5,534.87/x
  3. Step 3: Cross multiply
    10,011.38x = 13,815.16 × 5,534.87
  4. Step 4: Simplify right side
    10,011.38x = 76,465,031.72
  5. Step 5: Solve for x
    x = 76,465,031.72/10,011.38
  6. Step 6: Final answer
    x = 7,637.82

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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.