Home / 14,511.42-20,017.11-10,988.22

Finding the Fourth Proportional to 14,511.42, 20,017.11 and 10,988.22

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Solution

The fourth proportional to 14,511.42, 20,017.11 and 10,988.22 is: 15,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.42 : 20,017.11 = 10,988.22 : x
  2. Step 2: Convert to fraction form
    14,511.42/20,017.11 = 10,988.22/x
  3. Step 3: Cross multiply
    14,511.42x = 20,017.11 × 10,988.22
  4. Step 4: Simplify right side
    14,511.42x = 219,952,408.44
  5. Step 5: Solve for x
    x = 219,952,408.44/14,511.42
  6. Step 6: Final answer
    x = 15,157.19

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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.