Home / 12,946.77-17,868.30-7,570.80

Finding the Fourth Proportional to 12,946.77, 17,868.30 and 7,570.80

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Solution

The fourth proportional to 12,946.77, 17,868.30 and 7,570.80 is: 10,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.77 : 17,868.30 = 7,570.80 : x
  2. Step 2: Convert to fraction form
    12,946.77/17,868.30 = 7,570.80/x
  3. Step 3: Cross multiply
    12,946.77x = 17,868.30 × 7,570.80
  4. Step 4: Simplify right side
    12,946.77x = 135,277,297.25
  5. Step 5: Solve for x
    x = 135,277,297.25/12,946.77
  6. Step 6: Final answer
    x = 10,448.73

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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.