Home / 7,927.60-11,867.10-7,490.20

Finding the Fourth Proportional to 7,927.60, 11,867.10 and 7,490.20

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Solution

The fourth proportional to 7,927.60, 11,867.10 and 7,490.20 is: 11,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.60 : 11,867.10 = 7,490.20 : x
  2. Step 2: Convert to fraction form
    7,927.60/11,867.10 = 7,490.20/x
  3. Step 3: Cross multiply
    7,927.60x = 11,867.10 × 7,490.20
  4. Step 4: Simplify right side
    7,927.60x = 88,886,952.42
  5. Step 5: Solve for x
    x = 88,886,952.42/7,927.60
  6. Step 6: Final answer
    x = 11,212.34

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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.