Home / 13,449.04-18,557.31-7,782.82

Finding the Fourth Proportional to 13,449.04, 18,557.31 and 7,782.82

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Solution

The fourth proportional to 13,449.04, 18,557.31 and 7,782.82 is: 10,738.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.04 : 18,557.31 = 7,782.82 : x
  2. Step 2: Convert to fraction form
    13,449.04/18,557.31 = 7,782.82/x
  3. Step 3: Cross multiply
    13,449.04x = 18,557.31 × 7,782.82
  4. Step 4: Simplify right side
    13,449.04x = 144,428,203.41
  5. Step 5: Solve for x
    x = 144,428,203.41/13,449.04
  6. Step 6: Final answer
    x = 10,738.92

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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.