Home / 15,437.96-21,287.16-11,180.60

Finding the Fourth Proportional to 15,437.96, 21,287.16 and 11,180.60

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Solution

The fourth proportional to 15,437.96, 21,287.16 and 11,180.60 is: 15,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.96 : 21,287.16 = 11,180.60 : x
  2. Step 2: Convert to fraction form
    15,437.96/21,287.16 = 11,180.60/x
  3. Step 3: Cross multiply
    15,437.96x = 21,287.16 × 11,180.60
  4. Step 4: Simplify right side
    15,437.96x = 238,003,221.10
  5. Step 5: Solve for x
    x = 238,003,221.10/15,437.96
  6. Step 6: Final answer
    x = 15,416.75

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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.