Home / 10,006.74-13,809.10-5,530.39

Finding the Fourth Proportional to 10,006.74, 13,809.10 and 5,530.39

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Solution

The fourth proportional to 10,006.74, 13,809.10 and 5,530.39 is: 7,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,006.74 : 13,809.10 = 5,530.39 : x
  2. Step 2: Convert to fraction form
    10,006.74/13,809.10 = 5,530.39/x
  3. Step 3: Cross multiply
    10,006.74x = 13,809.10 × 5,530.39
  4. Step 4: Simplify right side
    10,006.74x = 76,369,748.25
  5. Step 5: Solve for x
    x = 76,369,748.25/10,006.74
  6. Step 6: Final answer
    x = 7,631.83

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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.