Home / 12,690.05-19,036.34-4,368.96

Finding the Fourth Proportional to 12,690.05, 19,036.34 and 4,368.96

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Solution

The fourth proportional to 12,690.05, 19,036.34 and 4,368.96 is: 6,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.05 : 19,036.34 = 4,368.96 : x
  2. Step 2: Convert to fraction form
    12,690.05/19,036.34 = 4,368.96/x
  3. Step 3: Cross multiply
    12,690.05x = 19,036.34 × 4,368.96
  4. Step 4: Simplify right side
    12,690.05x = 83,169,008.01
  5. Step 5: Solve for x
    x = 83,169,008.01/12,690.05
  6. Step 6: Final answer
    x = 6,553.88

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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.