Home / 12,748.81-19,130.70-5,352.70

Finding the Fourth Proportional to 12,748.81, 19,130.70 and 5,352.70

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Solution

The fourth proportional to 12,748.81, 19,130.70 and 5,352.70 is: 8,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.81 : 19,130.70 = 5,352.70 : x
  2. Step 2: Convert to fraction form
    12,748.81/19,130.70 = 5,352.70/x
  3. Step 3: Cross multiply
    12,748.81x = 19,130.70 × 5,352.70
  4. Step 4: Simplify right side
    12,748.81x = 102,400,863.44
  5. Step 5: Solve for x
    x = 102,400,863.44/12,748.81
  6. Step 6: Final answer
    x = 8,032.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.