Home / 13,988.88-20,996.28-7,068.24

Finding the Fourth Proportional to 13,988.88, 20,996.28 and 7,068.24

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Solution

The fourth proportional to 13,988.88, 20,996.28 and 7,068.24 is: 10,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.88 : 20,996.28 = 7,068.24 : x
  2. Step 2: Convert to fraction form
    13,988.88/20,996.28 = 7,068.24/x
  3. Step 3: Cross multiply
    13,988.88x = 20,996.28 × 7,068.24
  4. Step 4: Simplify right side
    13,988.88x = 148,406,746.15
  5. Step 5: Solve for x
    x = 148,406,746.15/13,988.88
  6. Step 6: Final answer
    x = 10,608.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.