Home / 11,288.34-15,585.45-7,041.11

Finding the Fourth Proportional to 11,288.34, 15,585.45 and 7,041.11

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Solution

The fourth proportional to 11,288.34, 15,585.45 and 7,041.11 is: 9,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,288.34 : 15,585.45 = 7,041.11 : x
  2. Step 2: Convert to fraction form
    11,288.34/15,585.45 = 7,041.11/x
  3. Step 3: Cross multiply
    11,288.34x = 15,585.45 × 7,041.11
  4. Step 4: Simplify right side
    11,288.34x = 109,738,789.92
  5. Step 5: Solve for x
    x = 109,738,789.92/11,288.34
  6. Step 6: Final answer
    x = 9,721.43

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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.