Home / 13,167.74-18,159.72-7,860.62

Finding the Fourth Proportional to 13,167.74, 18,159.72 and 7,860.62

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Solution

The fourth proportional to 13,167.74, 18,159.72 and 7,860.62 is: 10,840.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.74 : 18,159.72 = 7,860.62 : x
  2. Step 2: Convert to fraction form
    13,167.74/18,159.72 = 7,860.62/x
  3. Step 3: Cross multiply
    13,167.74x = 18,159.72 × 7,860.62
  4. Step 4: Simplify right side
    13,167.74x = 142,746,658.23
  5. Step 5: Solve for x
    x = 142,746,658.23/13,167.74
  6. Step 6: Final answer
    x = 10,840.63

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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.