Home / 9,840.30-13,579.14-5,590.77

Finding the Fourth Proportional to 9,840.30, 13,579.14 and 5,590.77

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Solution

The fourth proportional to 9,840.30, 13,579.14 and 5,590.77 is: 7,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.30 : 13,579.14 = 5,590.77 : x
  2. Step 2: Convert to fraction form
    9,840.30/13,579.14 = 5,590.77/x
  3. Step 3: Cross multiply
    9,840.30x = 13,579.14 × 5,590.77
  4. Step 4: Simplify right side
    9,840.30x = 75,917,848.54
  5. Step 5: Solve for x
    x = 75,917,848.54/9,840.30
  6. Step 6: Final answer
    x = 7,714.99

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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.