Home / 14,108.66-19,466.01-11,115.20

Finding the Fourth Proportional to 14,108.66, 19,466.01 and 11,115.20

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Solution

The fourth proportional to 14,108.66, 19,466.01 and 11,115.20 is: 15,335.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.66 : 19,466.01 = 11,115.20 : x
  2. Step 2: Convert to fraction form
    14,108.66/19,466.01 = 11,115.20/x
  3. Step 3: Cross multiply
    14,108.66x = 19,466.01 × 11,115.20
  4. Step 4: Simplify right side
    14,108.66x = 216,368,643.02
  5. Step 5: Solve for x
    x = 216,368,643.02/14,108.66
  6. Step 6: Final answer
    x = 15,335.88

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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.