Home / 18,904.80-26,088.12-10,521.12

Finding the Fourth Proportional to 18,904.80, 26,088.12 and 10,521.12

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Solution

The fourth proportional to 18,904.80, 26,088.12 and 10,521.12 is: 14,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.80 : 26,088.12 = 10,521.12 : x
  2. Step 2: Convert to fraction form
    18,904.80/26,088.12 = 10,521.12/x
  3. Step 3: Cross multiply
    18,904.80x = 26,088.12 × 10,521.12
  4. Step 4: Simplify right side
    18,904.80x = 274,476,241.09
  5. Step 5: Solve for x
    x = 274,476,241.09/18,904.80
  6. Step 6: Final answer
    x = 14,518.87

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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.