Home / 12,873.80-19,310.70-9,763.40

Finding the Fourth Proportional to 12,873.80, 19,310.70 and 9,763.40

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Solution

The fourth proportional to 12,873.80, 19,310.70 and 9,763.40 is: 14,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.80 : 19,310.70 = 9,763.40 : x
  2. Step 2: Convert to fraction form
    12,873.80/19,310.70 = 9,763.40/x
  3. Step 3: Cross multiply
    12,873.80x = 19,310.70 × 9,763.40
  4. Step 4: Simplify right side
    12,873.80x = 188,538,088.38
  5. Step 5: Solve for x
    x = 188,538,088.38/12,873.80
  6. Step 6: Final answer
    x = 14,645.10

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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.