Home / 13,544.31-18,690.28-7,574.95

Finding the Fourth Proportional to 13,544.31, 18,690.28 and 7,574.95

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Solution

The fourth proportional to 13,544.31, 18,690.28 and 7,574.95 is: 10,452.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.31 : 18,690.28 = 7,574.95 : x
  2. Step 2: Convert to fraction form
    13,544.31/18,690.28 = 7,574.95/x
  3. Step 3: Cross multiply
    13,544.31x = 18,690.28 × 7,574.95
  4. Step 4: Simplify right side
    13,544.31x = 141,577,940.91
  5. Step 5: Solve for x
    x = 141,577,940.91/13,544.31
  6. Step 6: Final answer
    x = 10,452.94

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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.