Home / 12,800.61-19,212.80-6,565.23

Finding the Fourth Proportional to 12,800.61, 19,212.80 and 6,565.23

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Solution

The fourth proportional to 12,800.61, 19,212.80 and 6,565.23 is: 9,853.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.61 : 19,212.80 = 6,565.23 : x
  2. Step 2: Convert to fraction form
    12,800.61/19,212.80 = 6,565.23/x
  3. Step 3: Cross multiply
    12,800.61x = 19,212.80 × 6,565.23
  4. Step 4: Simplify right side
    12,800.61x = 126,136,418.12
  5. Step 5: Solve for x
    x = 126,136,418.12/12,800.61
  6. Step 6: Final answer
    x = 9,853.94

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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.