Home / 11,681.20-17,530.71-8,569.45

Finding the Fourth Proportional to 11,681.20, 17,530.71 and 8,569.45

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Solution

The fourth proportional to 11,681.20, 17,530.71 and 8,569.45 is: 12,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.20 : 17,530.71 = 8,569.45 : x
  2. Step 2: Convert to fraction form
    11,681.20/17,530.71 = 8,569.45/x
  3. Step 3: Cross multiply
    11,681.20x = 17,530.71 × 8,569.45
  4. Step 4: Simplify right side
    11,681.20x = 150,228,542.81
  5. Step 5: Solve for x
    x = 150,228,542.81/11,681.20
  6. Step 6: Final answer
    x = 12,860.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.