Home / 15,409.20-23,113.80-5,551.56

Finding the Fourth Proportional to 15,409.20, 23,113.80 and 5,551.56

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Solution

The fourth proportional to 15,409.20, 23,113.80 and 5,551.56 is: 8,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.20 : 23,113.80 = 5,551.56 : x
  2. Step 2: Convert to fraction form
    15,409.20/23,113.80 = 5,551.56/x
  3. Step 3: Cross multiply
    15,409.20x = 23,113.80 × 5,551.56
  4. Step 4: Simplify right side
    15,409.20x = 128,317,647.53
  5. Step 5: Solve for x
    x = 128,317,647.53/15,409.20
  6. Step 6: Final answer
    x = 8,327.34

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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.