Home / 15,243.90-21,037.61-8,530.14

Finding the Fourth Proportional to 15,243.90, 21,037.61 and 8,530.14

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Solution

The fourth proportional to 15,243.90, 21,037.61 and 8,530.14 is: 11,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.90 : 21,037.61 = 8,530.14 : x
  2. Step 2: Convert to fraction form
    15,243.90/21,037.61 = 8,530.14/x
  3. Step 3: Cross multiply
    15,243.90x = 21,037.61 × 8,530.14
  4. Step 4: Simplify right side
    15,243.90x = 179,453,858.78
  5. Step 5: Solve for x
    x = 179,453,858.78/15,243.90
  6. Step 6: Final answer
    x = 11,772.18

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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.