Home / 15,756.31-23,643.68-8,742.18

Finding the Fourth Proportional to 15,756.31, 23,643.68 and 8,742.18

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Solution

The fourth proportional to 15,756.31, 23,643.68 and 8,742.18 is: 13,118.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.31 : 23,643.68 = 8,742.18 : x
  2. Step 2: Convert to fraction form
    15,756.31/23,643.68 = 8,742.18/x
  3. Step 3: Cross multiply
    15,756.31x = 23,643.68 × 8,742.18
  4. Step 4: Simplify right side
    15,756.31x = 206,697,400.55
  5. Step 5: Solve for x
    x = 206,697,400.55/15,756.31
  6. Step 6: Final answer
    x = 13,118.39

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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.