Home / 12,769.95-19,156.30-5,376.07

Finding the Fourth Proportional to 12,769.95, 19,156.30 and 5,376.07

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Solution

The fourth proportional to 12,769.95, 19,156.30 and 5,376.07 is: 8,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.95 : 19,156.30 = 5,376.07 : x
  2. Step 2: Convert to fraction form
    12,769.95/19,156.30 = 5,376.07/x
  3. Step 3: Cross multiply
    12,769.95x = 19,156.30 × 5,376.07
  4. Step 4: Simplify right side
    12,769.95x = 102,985,620.25
  5. Step 5: Solve for x
    x = 102,985,620.25/12,769.95
  6. Step 6: Final answer
    x = 8,064.68

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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.