Home / 9,979.48-14,972.46-4,784.68

Finding the Fourth Proportional to 9,979.48, 14,972.46 and 4,784.68

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Solution

The fourth proportional to 9,979.48, 14,972.46 and 4,784.68 is: 7,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.48 : 14,972.46 = 4,784.68 : x
  2. Step 2: Convert to fraction form
    9,979.48/14,972.46 = 4,784.68/x
  3. Step 3: Cross multiply
    9,979.48x = 14,972.46 × 4,784.68
  4. Step 4: Simplify right side
    9,979.48x = 71,638,429.91
  5. Step 5: Solve for x
    x = 71,638,429.91/9,979.48
  6. Step 6: Final answer
    x = 7,178.57

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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.