Home / 15,580.02-21,499.60-8,505.06

Finding the Fourth Proportional to 15,580.02, 21,499.60 and 8,505.06

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Solution

The fourth proportional to 15,580.02, 21,499.60 and 8,505.06 is: 11,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.02 : 21,499.60 = 8,505.06 : x
  2. Step 2: Convert to fraction form
    15,580.02/21,499.60 = 8,505.06/x
  3. Step 3: Cross multiply
    15,580.02x = 21,499.60 × 8,505.06
  4. Step 4: Simplify right side
    15,580.02x = 182,855,387.98
  5. Step 5: Solve for x
    x = 182,855,387.98/15,580.02
  6. Step 6: Final answer
    x = 11,736.53

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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.