Home / 19,530.06-29,297.55-6,378.90

Finding the Fourth Proportional to 19,530.06, 29,297.55 and 6,378.90

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Solution

The fourth proportional to 19,530.06, 29,297.55 and 6,378.90 is: 9,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.06 : 29,297.55 = 6,378.90 : x
  2. Step 2: Convert to fraction form
    19,530.06/29,297.55 = 6,378.90/x
  3. Step 3: Cross multiply
    19,530.06x = 29,297.55 × 6,378.90
  4. Step 4: Simplify right side
    19,530.06x = 186,886,141.70
  5. Step 5: Solve for x
    x = 186,886,141.70/19,530.06
  6. Step 6: Final answer
    x = 9,569.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.