Home / 9,519.31-13,135.86-5,690.86

Finding the Fourth Proportional to 9,519.31, 13,135.86 and 5,690.86

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Solution

The fourth proportional to 9,519.31, 13,135.86 and 5,690.86 is: 7,852.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.31 : 13,135.86 = 5,690.86 : x
  2. Step 2: Convert to fraction form
    9,519.31/13,135.86 = 5,690.86/x
  3. Step 3: Cross multiply
    9,519.31x = 13,135.86 × 5,690.86
  4. Step 4: Simplify right side
    9,519.31x = 74,754,340.24
  5. Step 5: Solve for x
    x = 74,754,340.24/9,519.31
  6. Step 6: Final answer
    x = 7,852.92

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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.