Home / 15,323.56-21,148.50-9,356.02

Finding the Fourth Proportional to 15,323.56, 21,148.50 and 9,356.02

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Solution

The fourth proportional to 15,323.56, 21,148.50 and 9,356.02 is: 12,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.56 : 21,148.50 = 9,356.02 : x
  2. Step 2: Convert to fraction form
    15,323.56/21,148.50 = 9,356.02/x
  3. Step 3: Cross multiply
    15,323.56x = 21,148.50 × 9,356.02
  4. Step 4: Simplify right side
    15,323.56x = 197,865,788.97
  5. Step 5: Solve for x
    x = 197,865,788.97/15,323.56
  6. Step 6: Final answer
    x = 12,912.52

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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.