Home / 13,126.50-19,695.55-6,885.02

Finding the Fourth Proportional to 13,126.50, 19,695.55 and 6,885.02

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Solution

The fourth proportional to 13,126.50, 19,695.55 and 6,885.02 is: 10,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.50 : 19,695.55 = 6,885.02 : x
  2. Step 2: Convert to fraction form
    13,126.50/19,695.55 = 6,885.02/x
  3. Step 3: Cross multiply
    13,126.50x = 19,695.55 × 6,885.02
  4. Step 4: Simplify right side
    13,126.50x = 135,604,255.66
  5. Step 5: Solve for x
    x = 135,604,255.66/13,126.50
  6. Step 6: Final answer
    x = 10,330.57

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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.