Home / 13,818.78-19,064.22-9,629.46

Finding the Fourth Proportional to 13,818.78, 19,064.22 and 9,629.46

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Solution

The fourth proportional to 13,818.78, 19,064.22 and 9,629.46 is: 13,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.78 : 19,064.22 = 9,629.46 : x
  2. Step 2: Convert to fraction form
    13,818.78/19,064.22 = 9,629.46/x
  3. Step 3: Cross multiply
    13,818.78x = 19,064.22 × 9,629.46
  4. Step 4: Simplify right side
    13,818.78x = 183,578,143.92
  5. Step 5: Solve for x
    x = 183,578,143.92/13,818.78
  6. Step 6: Final answer
    x = 13,284.69

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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.