Home / 13,276.15-18,321.10-7,307.82

Finding the Fourth Proportional to 13,276.15, 18,321.10 and 7,307.82

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Solution

The fourth proportional to 13,276.15, 18,321.10 and 7,307.82 is: 10,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.15 : 18,321.10 = 7,307.82 : x
  2. Step 2: Convert to fraction form
    13,276.15/18,321.10 = 7,307.82/x
  3. Step 3: Cross multiply
    13,276.15x = 18,321.10 × 7,307.82
  4. Step 4: Simplify right side
    13,276.15x = 133,887,301.00
  5. Step 5: Solve for x
    x = 133,887,301.00/13,276.15
  6. Step 6: Final answer
    x = 10,084.80

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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.