Home / 7,980.60-11,979.54-5,898.36

Finding the Fourth Proportional to 7,980.60, 11,979.54 and 5,898.36

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Solution

The fourth proportional to 7,980.60, 11,979.54 and 5,898.36 is: 8,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.60 : 11,979.54 = 5,898.36 : x
  2. Step 2: Convert to fraction form
    7,980.60/11,979.54 = 5,898.36/x
  3. Step 3: Cross multiply
    7,980.60x = 11,979.54 × 5,898.36
  4. Step 4: Simplify right side
    7,980.60x = 70,659,639.55
  5. Step 5: Solve for x
    x = 70,659,639.55/7,980.60
  6. Step 6: Final answer
    x = 8,853.93

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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.