Home / 19,133.54-26,400.18-11,172.15

Finding the Fourth Proportional to 19,133.54, 26,400.18 and 11,172.15

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Solution

The fourth proportional to 19,133.54, 26,400.18 and 11,172.15 is: 15,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.54 : 26,400.18 = 11,172.15 : x
  2. Step 2: Convert to fraction form
    19,133.54/26,400.18 = 11,172.15/x
  3. Step 3: Cross multiply
    19,133.54x = 26,400.18 × 11,172.15
  4. Step 4: Simplify right side
    19,133.54x = 294,946,770.99
  5. Step 5: Solve for x
    x = 294,946,770.99/19,133.54
  6. Step 6: Final answer
    x = 15,415.17

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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.