Home / 19,530.66-29,282.97-6,378.42

Finding the Fourth Proportional to 19,530.66, 29,282.97 and 6,378.42

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Solution

The fourth proportional to 19,530.66, 29,282.97 and 6,378.42 is: 9,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.66 : 29,282.97 = 6,378.42 : x
  2. Step 2: Convert to fraction form
    19,530.66/29,282.97 = 6,378.42/x
  3. Step 3: Cross multiply
    19,530.66x = 29,282.97 × 6,378.42
  4. Step 4: Simplify right side
    19,530.66x = 186,779,081.51
  5. Step 5: Solve for x
    x = 186,779,081.51/19,530.66
  6. Step 6: Final answer
    x = 9,563.38

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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.