Home / 12,862.47-19,296.90-9,155.51

Finding the Fourth Proportional to 12,862.47, 19,296.90 and 9,155.51

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Solution

The fourth proportional to 12,862.47, 19,296.90 and 9,155.51 is: 13,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.47 : 19,296.90 = 9,155.51 : x
  2. Step 2: Convert to fraction form
    12,862.47/19,296.90 = 9,155.51/x
  3. Step 3: Cross multiply
    12,862.47x = 19,296.90 × 9,155.51
  4. Step 4: Simplify right side
    12,862.47x = 176,672,960.92
  5. Step 5: Solve for x
    x = 176,672,960.92/12,862.47
  6. Step 6: Final answer
    x = 13,735.54

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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.