Home / 13,918.06-20,873.85-6,515.47

Finding the Fourth Proportional to 13,918.06, 20,873.85 and 6,515.47

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Solution

The fourth proportional to 13,918.06, 20,873.85 and 6,515.47 is: 9,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.06 : 20,873.85 = 6,515.47 : x
  2. Step 2: Convert to fraction form
    13,918.06/20,873.85 = 6,515.47/x
  3. Step 3: Cross multiply
    13,918.06x = 20,873.85 × 6,515.47
  4. Step 4: Simplify right side
    13,918.06x = 136,002,943.46
  5. Step 5: Solve for x
    x = 136,002,943.46/13,918.06
  6. Step 6: Final answer
    x = 9,771.69

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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.