Home / 19,111.77-26,378.13-11,045.78

Finding the Fourth Proportional to 19,111.77, 26,378.13 and 11,045.78

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Solution

The fourth proportional to 19,111.77, 26,378.13 and 11,045.78 is: 15,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.77 : 26,378.13 = 11,045.78 : x
  2. Step 2: Convert to fraction form
    19,111.77/26,378.13 = 11,045.78/x
  3. Step 3: Cross multiply
    19,111.77x = 26,378.13 × 11,045.78
  4. Step 4: Simplify right side
    19,111.77x = 291,366,888.90
  5. Step 5: Solve for x
    x = 291,366,888.90/19,111.77
  6. Step 6: Final answer
    x = 15,245.41

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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.