Home / 15,350.31-21,182.51-8,544.08

Finding the Fourth Proportional to 15,350.31, 21,182.51 and 8,544.08

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Solution

The fourth proportional to 15,350.31, 21,182.51 and 8,544.08 is: 11,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.31 : 21,182.51 = 8,544.08 : x
  2. Step 2: Convert to fraction form
    15,350.31/21,182.51 = 8,544.08/x
  3. Step 3: Cross multiply
    15,350.31x = 21,182.51 × 8,544.08
  4. Step 4: Simplify right side
    15,350.31x = 180,985,134.36
  5. Step 5: Solve for x
    x = 180,985,134.36/15,350.31
  6. Step 6: Final answer
    x = 11,790.32

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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.