Home / 19,118.12-26,384.64-11,162.88

Finding the Fourth Proportional to 19,118.12, 26,384.64 and 11,162.88

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Solution

The fourth proportional to 19,118.12, 26,384.64 and 11,162.88 is: 15,405.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.12 : 26,384.64 = 11,162.88 : x
  2. Step 2: Convert to fraction form
    19,118.12/26,384.64 = 11,162.88/x
  3. Step 3: Cross multiply
    19,118.12x = 26,384.64 × 11,162.88
  4. Step 4: Simplify right side
    19,118.12x = 294,528,570.16
  5. Step 5: Solve for x
    x = 294,528,570.16/19,118.12
  6. Step 6: Final answer
    x = 15,405.73

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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.