Home / 9,521.42-13,135.14-6,165.32

Finding the Fourth Proportional to 9,521.42, 13,135.14 and 6,165.32

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Solution

The fourth proportional to 9,521.42, 13,135.14 and 6,165.32 is: 8,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.42 : 13,135.14 = 6,165.32 : x
  2. Step 2: Convert to fraction form
    9,521.42/13,135.14 = 6,165.32/x
  3. Step 3: Cross multiply
    9,521.42x = 13,135.14 × 6,165.32
  4. Step 4: Simplify right side
    9,521.42x = 80,982,275.67
  5. Step 5: Solve for x
    x = 80,982,275.67/9,521.42
  6. Step 6: Final answer
    x = 8,505.28

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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.