Home / 9,539.32-13,164.38-5,290.47

Finding the Fourth Proportional to 9,539.32, 13,164.38 and 5,290.47

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Solution

The fourth proportional to 9,539.32, 13,164.38 and 5,290.47 is: 7,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,539.32 : 13,164.38 = 5,290.47 : x
  2. Step 2: Convert to fraction form
    9,539.32/13,164.38 = 5,290.47/x
  3. Step 3: Cross multiply
    9,539.32x = 13,164.38 × 5,290.47
  4. Step 4: Simplify right side
    9,539.32x = 69,645,757.46
  5. Step 5: Solve for x
    x = 69,645,757.46/9,539.32
  6. Step 6: Final answer
    x = 7,300.91

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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.