Home / 15,606.31-23,404.60-5,215.63

Finding the Fourth Proportional to 15,606.31, 23,404.60 and 5,215.63

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Solution

The fourth proportional to 15,606.31, 23,404.60 and 5,215.63 is: 7,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,606.31 : 23,404.60 = 5,215.63 : x
  2. Step 2: Convert to fraction form
    15,606.31/23,404.60 = 5,215.63/x
  3. Step 3: Cross multiply
    15,606.31x = 23,404.60 × 5,215.63
  4. Step 4: Simplify right side
    15,606.31x = 122,069,733.90
  5. Step 5: Solve for x
    x = 122,069,733.90/15,606.31
  6. Step 6: Final answer
    x = 7,821.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.