Home / 13,544.29-18,690.78-7,576.21

Finding the Fourth Proportional to 13,544.29, 18,690.78 and 7,576.21

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Solution

The fourth proportional to 13,544.29, 18,690.78 and 7,576.21 is: 10,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.29 : 18,690.78 = 7,576.21 : x
  2. Step 2: Convert to fraction form
    13,544.29/18,690.78 = 7,576.21/x
  3. Step 3: Cross multiply
    13,544.29x = 18,690.78 × 7,576.21
  4. Step 4: Simplify right side
    13,544.29x = 141,605,274.34
  5. Step 5: Solve for x
    x = 141,605,274.34/13,544.29
  6. Step 6: Final answer
    x = 10,454.98

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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.