Home / 12,277.47-16,942.95-6,972.33

Finding the Fourth Proportional to 12,277.47, 16,942.95 and 6,972.33

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Solution

The fourth proportional to 12,277.47, 16,942.95 and 6,972.33 is: 9,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.47 : 16,942.95 = 6,972.33 : x
  2. Step 2: Convert to fraction form
    12,277.47/16,942.95 = 6,972.33/x
  3. Step 3: Cross multiply
    12,277.47x = 16,942.95 × 6,972.33
  4. Step 4: Simplify right side
    12,277.47x = 118,131,838.57
  5. Step 5: Solve for x
    x = 118,131,838.57/12,277.47
  6. Step 6: Final answer
    x = 9,621.84

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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.