Home / 11,560.19-15,947.18-7,021.66

Finding the Fourth Proportional to 11,560.19, 15,947.18 and 7,021.66

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Solution

The fourth proportional to 11,560.19, 15,947.18 and 7,021.66 is: 9,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,560.19 : 15,947.18 = 7,021.66 : x
  2. Step 2: Convert to fraction form
    11,560.19/15,947.18 = 7,021.66/x
  3. Step 3: Cross multiply
    11,560.19x = 15,947.18 × 7,021.66
  4. Step 4: Simplify right side
    11,560.19x = 111,975,738.22
  5. Step 5: Solve for x
    x = 111,975,738.22/11,560.19
  6. Step 6: Final answer
    x = 9,686.32

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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.