Home / 15,435.59-21,301.22-8,362.02

Finding the Fourth Proportional to 15,435.59, 21,301.22 and 8,362.02

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Solution

The fourth proportional to 15,435.59, 21,301.22 and 8,362.02 is: 11,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.59 : 21,301.22 = 8,362.02 : x
  2. Step 2: Convert to fraction form
    15,435.59/21,301.22 = 8,362.02/x
  3. Step 3: Cross multiply
    15,435.59x = 21,301.22 × 8,362.02
  4. Step 4: Simplify right side
    15,435.59x = 178,121,248.57
  5. Step 5: Solve for x
    x = 178,121,248.57/15,435.59
  6. Step 6: Final answer
    x = 11,539.64

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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.