Home / 11,429.25-15,772.95-6,715.05

Finding the Fourth Proportional to 11,429.25, 15,772.95 and 6,715.05

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Solution

The fourth proportional to 11,429.25, 15,772.95 and 6,715.05 is: 9,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.25 : 15,772.95 = 6,715.05 : x
  2. Step 2: Convert to fraction form
    11,429.25/15,772.95 = 6,715.05/x
  3. Step 3: Cross multiply
    11,429.25x = 15,772.95 × 6,715.05
  4. Step 4: Simplify right side
    11,429.25x = 105,916,147.90
  5. Step 5: Solve for x
    x = 105,916,147.90/11,429.25
  6. Step 6: Final answer
    x = 9,267.11

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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.