Home / 12,922.13-19,383.27-5,130.95

Finding the Fourth Proportional to 12,922.13, 19,383.27 and 5,130.95

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Solution

The fourth proportional to 12,922.13, 19,383.27 and 5,130.95 is: 7,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.13 : 19,383.27 = 5,130.95 : x
  2. Step 2: Convert to fraction form
    12,922.13/19,383.27 = 5,130.95/x
  3. Step 3: Cross multiply
    12,922.13x = 19,383.27 × 5,130.95
  4. Step 4: Simplify right side
    12,922.13x = 99,454,492.29
  5. Step 5: Solve for x
    x = 99,454,492.29/12,922.13
  6. Step 6: Final answer
    x = 7,696.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.