Home / 13,581.85-18,742.02-7,532.41

Finding the Fourth Proportional to 13,581.85, 18,742.02 and 7,532.41

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Solution

The fourth proportional to 13,581.85, 18,742.02 and 7,532.41 is: 10,394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.85 : 18,742.02 = 7,532.41 : x
  2. Step 2: Convert to fraction form
    13,581.85/18,742.02 = 7,532.41/x
  3. Step 3: Cross multiply
    13,581.85x = 18,742.02 × 7,532.41
  4. Step 4: Simplify right side
    13,581.85x = 141,172,578.87
  5. Step 5: Solve for x
    x = 141,172,578.87/13,581.85
  6. Step 6: Final answer
    x = 10,394.21

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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.