Home / 19,356.50-28,979.66-12,762.56

Finding the Fourth Proportional to 19,356.50, 28,979.66 and 12,762.56

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Solution

The fourth proportional to 19,356.50, 28,979.66 and 12,762.56 is: 19,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.50 : 28,979.66 = 12,762.56 : x
  2. Step 2: Convert to fraction form
    19,356.50/28,979.66 = 12,762.56/x
  3. Step 3: Cross multiply
    19,356.50x = 28,979.66 × 12,762.56
  4. Step 4: Simplify right side
    19,356.50x = 369,854,649.53
  5. Step 5: Solve for x
    x = 369,854,649.53/19,356.50
  6. Step 6: Final answer
    x = 19,107.52

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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.