Home / 15,314.36-21,133.82-8,599.99

Finding the Fourth Proportional to 15,314.36, 21,133.82 and 8,599.99

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Solution

The fourth proportional to 15,314.36, 21,133.82 and 8,599.99 is: 11,867.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.36 : 21,133.82 = 8,599.99 : x
  2. Step 2: Convert to fraction form
    15,314.36/21,133.82 = 8,599.99/x
  3. Step 3: Cross multiply
    15,314.36x = 21,133.82 × 8,599.99
  4. Step 4: Simplify right side
    15,314.36x = 181,750,624.08
  5. Step 5: Solve for x
    x = 181,750,624.08/15,314.36
  6. Step 6: Final answer
    x = 11,867.99

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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.