Home / 9,916.36-13,684.50-5,726.92

Finding the Fourth Proportional to 9,916.36, 13,684.50 and 5,726.92

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Solution

The fourth proportional to 9,916.36, 13,684.50 and 5,726.92 is: 7,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.36 : 13,684.50 = 5,726.92 : x
  2. Step 2: Convert to fraction form
    9,916.36/13,684.50 = 5,726.92/x
  3. Step 3: Cross multiply
    9,916.36x = 13,684.50 × 5,726.92
  4. Step 4: Simplify right side
    9,916.36x = 78,370,036.74
  5. Step 5: Solve for x
    x = 78,370,036.74/9,916.36
  6. Step 6: Final answer
    x = 7,903.11

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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.