Home / 13,815.19-19,064.94-7,527.56

Finding the Fourth Proportional to 13,815.19, 19,064.94 and 7,527.56

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Solution

The fourth proportional to 13,815.19, 19,064.94 and 7,527.56 is: 10,388.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.19 : 19,064.94 = 7,527.56 : x
  2. Step 2: Convert to fraction form
    13,815.19/19,064.94 = 7,527.56/x
  3. Step 3: Cross multiply
    13,815.19x = 19,064.94 × 7,527.56
  4. Step 4: Simplify right side
    13,815.19x = 143,512,479.75
  5. Step 5: Solve for x
    x = 143,512,479.75/13,815.19
  6. Step 6: Final answer
    x = 10,388.02

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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.