Home / 18,421.60-27,601.17-11,384.08

Finding the Fourth Proportional to 18,421.60, 27,601.17 and 11,384.08

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Solution

The fourth proportional to 18,421.60, 27,601.17 and 11,384.08 is: 17,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.60 : 27,601.17 = 11,384.08 : x
  2. Step 2: Convert to fraction form
    18,421.60/27,601.17 = 11,384.08/x
  3. Step 3: Cross multiply
    18,421.60x = 27,601.17 × 11,384.08
  4. Step 4: Simplify right side
    18,421.60x = 314,213,927.37
  5. Step 5: Solve for x
    x = 314,213,927.37/18,421.60
  6. Step 6: Final answer
    x = 17,056.82

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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.