Home / 7,989.60-11,018.52-4,840.32

Finding the Fourth Proportional to 7,989.60, 11,018.52 and 4,840.32

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Solution

The fourth proportional to 7,989.60, 11,018.52 and 4,840.32 is: 6,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.60 : 11,018.52 = 4,840.32 : x
  2. Step 2: Convert to fraction form
    7,989.60/11,018.52 = 4,840.32/x
  3. Step 3: Cross multiply
    7,989.60x = 11,018.52 × 4,840.32
  4. Step 4: Simplify right side
    7,989.60x = 53,333,162.73
  5. Step 5: Solve for x
    x = 53,333,162.73/7,989.60
  6. Step 6: Final answer
    x = 6,675.32

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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.