Home / 15,420.29-23,116.55-5,552.63

Finding the Fourth Proportional to 15,420.29, 23,116.55 and 5,552.63

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Solution

The fourth proportional to 15,420.29, 23,116.55 and 5,552.63 is: 8,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.29 : 23,116.55 = 5,552.63 : x
  2. Step 2: Convert to fraction form
    15,420.29/23,116.55 = 5,552.63/x
  3. Step 3: Cross multiply
    15,420.29x = 23,116.55 × 5,552.63
  4. Step 4: Simplify right side
    15,420.29x = 128,357,505.68
  5. Step 5: Solve for x
    x = 128,357,505.68/15,420.29
  6. Step 6: Final answer
    x = 8,323.94

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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.