Home / 9,618.62-13,275.36-5,642.06

Finding the Fourth Proportional to 9,618.62, 13,275.36 and 5,642.06

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Solution

The fourth proportional to 9,618.62, 13,275.36 and 5,642.06 is: 7,787.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,618.62 : 13,275.36 = 5,642.06 : x
  2. Step 2: Convert to fraction form
    9,618.62/13,275.36 = 5,642.06/x
  3. Step 3: Cross multiply
    9,618.62x = 13,275.36 × 5,642.06
  4. Step 4: Simplify right side
    9,618.62x = 74,900,311.26
  5. Step 5: Solve for x
    x = 74,900,311.26/9,618.62
  6. Step 6: Final answer
    x = 7,787.02

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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.