Home / 15,395.75-21,246.13-8,322.17

Finding the Fourth Proportional to 15,395.75, 21,246.13 and 8,322.17

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Solution

The fourth proportional to 15,395.75, 21,246.13 and 8,322.17 is: 11,484.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.75 : 21,246.13 = 8,322.17 : x
  2. Step 2: Convert to fraction form
    15,395.75/21,246.13 = 8,322.17/x
  3. Step 3: Cross multiply
    15,395.75x = 21,246.13 × 8,322.17
  4. Step 4: Simplify right side
    15,395.75x = 176,813,873.12
  5. Step 5: Solve for x
    x = 176,813,873.12/15,395.75
  6. Step 6: Final answer
    x = 11,484.59

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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.