Home / 14,815.72-22,115.44-12,947.32

Finding the Fourth Proportional to 14,815.72, 22,115.44 and 12,947.32

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Solution

The fourth proportional to 14,815.72, 22,115.44 and 12,947.32 is: 19,326.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.72 : 22,115.44 = 12,947.32 : x
  2. Step 2: Convert to fraction form
    14,815.72/22,115.44 = 12,947.32/x
  3. Step 3: Cross multiply
    14,815.72x = 22,115.44 × 12,947.32
  4. Step 4: Simplify right side
    14,815.72x = 286,335,678.62
  5. Step 5: Solve for x
    x = 286,335,678.62/14,815.72
  6. Step 6: Final answer
    x = 19,326.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.