Home / 13,988.17-20,984.30-4,126.16

Finding the Fourth Proportional to 13,988.17, 20,984.30 and 4,126.16

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Solution

The fourth proportional to 13,988.17, 20,984.30 and 4,126.16 is: 6,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.17 : 20,984.30 = 4,126.16 : x
  2. Step 2: Convert to fraction form
    13,988.17/20,984.30 = 4,126.16/x
  3. Step 3: Cross multiply
    13,988.17x = 20,984.30 × 4,126.16
  4. Step 4: Simplify right side
    13,988.17x = 86,584,558.66
  5. Step 5: Solve for x
    x = 86,584,558.66/13,988.17
  6. Step 6: Final answer
    x = 6,189.84

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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.