Home / 19,156.45-26,420.91-13,110.28

Finding the Fourth Proportional to 19,156.45, 26,420.91 and 13,110.28

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Solution

The fourth proportional to 19,156.45, 26,420.91 and 13,110.28 is: 18,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.45 : 26,420.91 = 13,110.28 : x
  2. Step 2: Convert to fraction form
    19,156.45/26,420.91 = 13,110.28/x
  3. Step 3: Cross multiply
    19,156.45x = 26,420.91 × 13,110.28
  4. Step 4: Simplify right side
    19,156.45x = 346,385,527.95
  5. Step 5: Solve for x
    x = 346,385,527.95/19,156.45
  6. Step 6: Final answer
    x = 18,081.93

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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.