Home / 11,555.93-15,947.19-6,521.22

Finding the Fourth Proportional to 11,555.93, 15,947.19 and 6,521.22

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Solution

The fourth proportional to 11,555.93, 15,947.19 and 6,521.22 is: 8,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.93 : 15,947.19 = 6,521.22 : x
  2. Step 2: Convert to fraction form
    11,555.93/15,947.19 = 6,521.22/x
  3. Step 3: Cross multiply
    11,555.93x = 15,947.19 × 6,521.22
  4. Step 4: Simplify right side
    11,555.93x = 103,995,134.37
  5. Step 5: Solve for x
    x = 103,995,134.37/11,555.93
  6. Step 6: Final answer
    x = 8,999.29

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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.