Home / 9,927.90-14,877.27-4,990.68

Finding the Fourth Proportional to 9,927.90, 14,877.27 and 4,990.68

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Solution

The fourth proportional to 9,927.90, 14,877.27 and 4,990.68 is: 7,478.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,927.90 : 14,877.27 = 4,990.68 : x
  2. Step 2: Convert to fraction form
    9,927.90/14,877.27 = 4,990.68/x
  3. Step 3: Cross multiply
    9,927.90x = 14,877.27 × 4,990.68
  4. Step 4: Simplify right side
    9,927.90x = 74,247,693.84
  5. Step 5: Solve for x
    x = 74,247,693.84/9,927.90
  6. Step 6: Final answer
    x = 7,478.69

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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.