Home / 15,435.59-21,301.09-8,362.04

Finding the Fourth Proportional to 15,435.59, 21,301.09 and 8,362.04

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Solution

The fourth proportional to 15,435.59, 21,301.09 and 8,362.04 is: 11,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.59 : 21,301.09 = 8,362.04 : x
  2. Step 2: Convert to fraction form
    15,435.59/21,301.09 = 8,362.04/x
  3. Step 3: Cross multiply
    15,435.59x = 21,301.09 × 8,362.04
  4. Step 4: Simplify right side
    15,435.59x = 178,120,439.21
  5. Step 5: Solve for x
    x = 178,120,439.21/15,435.59
  6. Step 6: Final answer
    x = 11,539.60

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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.