Home / 19,124.80-28,678.56-6,813.12

Finding the Fourth Proportional to 19,124.80, 28,678.56 and 6,813.12

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Solution

The fourth proportional to 19,124.80, 28,678.56 and 6,813.12 is: 10,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.80 : 28,678.56 = 6,813.12 : x
  2. Step 2: Convert to fraction form
    19,124.80/28,678.56 = 6,813.12/x
  3. Step 3: Cross multiply
    19,124.80x = 28,678.56 × 6,813.12
  4. Step 4: Simplify right side
    19,124.80x = 195,390,470.71
  5. Step 5: Solve for x
    x = 195,390,470.71/19,124.80
  6. Step 6: Final answer
    x = 10,216.60

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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.