Home / 15,557.67-21,469.59-8,484.53

Finding the Fourth Proportional to 15,557.67, 21,469.59 and 8,484.53

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Solution

The fourth proportional to 15,557.67, 21,469.59 and 8,484.53 is: 11,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.67 : 21,469.59 = 8,484.53 : x
  2. Step 2: Convert to fraction form
    15,557.67/21,469.59 = 8,484.53/x
  3. Step 3: Cross multiply
    15,557.67x = 21,469.59 × 8,484.53
  4. Step 4: Simplify right side
    15,557.67x = 182,159,273.09
  5. Step 5: Solve for x
    x = 182,159,273.09/15,557.67
  6. Step 6: Final answer
    x = 11,708.65

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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.