Home / 12,830.11-19,251.54-7,204.28

Finding the Fourth Proportional to 12,830.11, 19,251.54 and 7,204.28

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Solution

The fourth proportional to 12,830.11, 19,251.54 and 7,204.28 is: 10,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.11 : 19,251.54 = 7,204.28 : x
  2. Step 2: Convert to fraction form
    12,830.11/19,251.54 = 7,204.28/x
  3. Step 3: Cross multiply
    12,830.11x = 19,251.54 × 7,204.28
  4. Step 4: Simplify right side
    12,830.11x = 138,693,484.59
  5. Step 5: Solve for x
    x = 138,693,484.59/12,830.11
  6. Step 6: Final answer
    x = 10,810.00

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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.