Home / 9,921.60-14,869.80-4,992.60

Finding the Fourth Proportional to 9,921.60, 14,869.80 and 4,992.60

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Solution

The fourth proportional to 9,921.60, 14,869.80 and 4,992.60 is: 7,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.60 : 14,869.80 = 4,992.60 : x
  2. Step 2: Convert to fraction form
    9,921.60/14,869.80 = 4,992.60/x
  3. Step 3: Cross multiply
    9,921.60x = 14,869.80 × 4,992.60
  4. Step 4: Simplify right side
    9,921.60x = 74,238,963.48
  5. Step 5: Solve for x
    x = 74,238,963.48/9,921.60
  6. Step 6: Final answer
    x = 7,482.56

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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.