Home / 13,291.57-18,344.39-10,099.66

Finding the Fourth Proportional to 13,291.57, 18,344.39 and 10,099.66

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Solution

The fourth proportional to 13,291.57, 18,344.39 and 10,099.66 is: 13,939.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.57 : 18,344.39 = 10,099.66 : x
  2. Step 2: Convert to fraction form
    13,291.57/18,344.39 = 10,099.66/x
  3. Step 3: Cross multiply
    13,291.57x = 18,344.39 × 10,099.66
  4. Step 4: Simplify right side
    13,291.57x = 185,272,051.41
  5. Step 5: Solve for x
    x = 185,272,051.41/13,291.57
  6. Step 6: Final answer
    x = 13,939.07

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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.