Home / 13,818.15-19,069.05-7,530.54

Finding the Fourth Proportional to 13,818.15, 19,069.05 and 7,530.54

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Solution

The fourth proportional to 13,818.15, 19,069.05 and 7,530.54 is: 10,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.15 : 19,069.05 = 7,530.54 : x
  2. Step 2: Convert to fraction form
    13,818.15/19,069.05 = 7,530.54/x
  3. Step 3: Cross multiply
    13,818.15x = 19,069.05 × 7,530.54
  4. Step 4: Simplify right side
    13,818.15x = 143,600,243.79
  5. Step 5: Solve for x
    x = 143,600,243.79/13,818.15
  6. Step 6: Final answer
    x = 10,392.15

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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.