Home / 13,276.58-18,322.00-7,307.69

Finding the Fourth Proportional to 13,276.58, 18,322.00 and 7,307.69

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Solution

The fourth proportional to 13,276.58, 18,322.00 and 7,307.69 is: 10,084.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.58 : 18,322.00 = 7,307.69 : x
  2. Step 2: Convert to fraction form
    13,276.58/18,322.00 = 7,307.69/x
  3. Step 3: Cross multiply
    13,276.58x = 18,322.00 × 7,307.69
  4. Step 4: Simplify right side
    13,276.58x = 133,891,386.30
  5. Step 5: Solve for x
    x = 133,891,386.30/13,276.58
  6. Step 6: Final answer
    x = 10,084.78

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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.