Home / 15,441.70-21,309.52-8,368.12

Finding the Fourth Proportional to 15,441.70, 21,309.52 and 8,368.12

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Solution

The fourth proportional to 15,441.70, 21,309.52 and 8,368.12 is: 11,547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.70 : 21,309.52 = 8,368.12 : x
  2. Step 2: Convert to fraction form
    15,441.70/21,309.52 = 8,368.12/x
  3. Step 3: Cross multiply
    15,441.70x = 21,309.52 × 8,368.12
  4. Step 4: Simplify right side
    15,441.70x = 178,320,620.50
  5. Step 5: Solve for x
    x = 178,320,620.50/15,441.70
  6. Step 6: Final answer
    x = 11,547.99

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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.