Home / 12,747.48-17,590.62-7,159.32

Finding the Fourth Proportional to 12,747.48, 17,590.62 and 7,159.32

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Solution

The fourth proportional to 12,747.48, 17,590.62 and 7,159.32 is: 9,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.48 : 17,590.62 = 7,159.32 : x
  2. Step 2: Convert to fraction form
    12,747.48/17,590.62 = 7,159.32/x
  3. Step 3: Cross multiply
    12,747.48x = 17,590.62 × 7,159.32
  4. Step 4: Simplify right side
    12,747.48x = 125,936,877.58
  5. Step 5: Solve for x
    x = 125,936,877.58/12,747.48
  6. Step 6: Final answer
    x = 9,879.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.