Home / 13,777.13-19,006.98-8,995.55

Finding the Fourth Proportional to 13,777.13, 19,006.98 and 8,995.55

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Solution

The fourth proportional to 13,777.13, 19,006.98 and 8,995.55 is: 12,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.13 : 19,006.98 = 8,995.55 : x
  2. Step 2: Convert to fraction form
    13,777.13/19,006.98 = 8,995.55/x
  3. Step 3: Cross multiply
    13,777.13x = 19,006.98 × 8,995.55
  4. Step 4: Simplify right side
    13,777.13x = 170,978,143.90
  5. Step 5: Solve for x
    x = 170,978,143.90/13,777.13
  6. Step 6: Final answer
    x = 12,410.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.