Home / 13,580.80-18,742.28-10,217.59

Finding the Fourth Proportional to 13,580.80, 18,742.28 and 10,217.59

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Solution

The fourth proportional to 13,580.80, 18,742.28 and 10,217.59 is: 14,100.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.80 : 18,742.28 = 10,217.59 : x
  2. Step 2: Convert to fraction form
    13,580.80/18,742.28 = 10,217.59/x
  3. Step 3: Cross multiply
    13,580.80x = 18,742.28 × 10,217.59
  4. Step 4: Simplify right side
    13,580.80x = 191,500,834.76
  5. Step 5: Solve for x
    x = 191,500,834.76/13,580.80
  6. Step 6: Final answer
    x = 14,100.85

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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.