Home / 19,019.32-28,531.80-6,542.56

Finding the Fourth Proportional to 19,019.32, 28,531.80 and 6,542.56

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Solution

The fourth proportional to 19,019.32, 28,531.80 and 6,542.56 is: 9,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.32 : 28,531.80 = 6,542.56 : x
  2. Step 2: Convert to fraction form
    19,019.32/28,531.80 = 6,542.56/x
  3. Step 3: Cross multiply
    19,019.32x = 28,531.80 × 6,542.56
  4. Step 4: Simplify right side
    19,019.32x = 186,671,013.41
  5. Step 5: Solve for x
    x = 186,671,013.41/19,019.32
  6. Step 6: Final answer
    x = 9,814.81

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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.