Home / 15,411.83-21,268.96-9,744.53

Finding the Fourth Proportional to 15,411.83, 21,268.96 and 9,744.53

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Solution

The fourth proportional to 15,411.83, 21,268.96 and 9,744.53 is: 13,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.83 : 21,268.96 = 9,744.53 : x
  2. Step 2: Convert to fraction form
    15,411.83/21,268.96 = 9,744.53/x
  3. Step 3: Cross multiply
    15,411.83x = 21,268.96 × 9,744.53
  4. Step 4: Simplify right side
    15,411.83x = 207,255,888.08
  5. Step 5: Solve for x
    x = 207,255,888.08/15,411.83
  6. Step 6: Final answer
    x = 13,447.85

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1.5x scale

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.