Home / 19,055.18-26,298.61-11,505.78

Finding the Fourth Proportional to 19,055.18, 26,298.61 and 11,505.78

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Solution

The fourth proportional to 19,055.18, 26,298.61 and 11,505.78 is: 15,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,055.18 : 26,298.61 = 11,505.78 : x
  2. Step 2: Convert to fraction form
    19,055.18/26,298.61 = 11,505.78/x
  3. Step 3: Cross multiply
    19,055.18x = 26,298.61 × 11,505.78
  4. Step 4: Simplify right side
    19,055.18x = 302,585,992.20
  5. Step 5: Solve for x
    x = 302,585,992.20/19,055.18
  6. Step 6: Final answer
    x = 15,879.46

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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.