Home / 13,133.40-19,683.66-6,561.42

Finding the Fourth Proportional to 13,133.40, 19,683.66 and 6,561.42

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Solution

The fourth proportional to 13,133.40, 19,683.66 and 6,561.42 is: 9,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.40 : 19,683.66 = 6,561.42 : x
  2. Step 2: Convert to fraction form
    13,133.40/19,683.66 = 6,561.42/x
  3. Step 3: Cross multiply
    13,133.40x = 19,683.66 × 6,561.42
  4. Step 4: Simplify right side
    13,133.40x = 129,152,760.40
  5. Step 5: Solve for x
    x = 129,152,760.40/13,133.40
  6. Step 6: Final answer
    x = 9,833.92

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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.