Home / 9,979.59-14,972.43-4,718.64

Finding the Fourth Proportional to 9,979.59, 14,972.43 and 4,718.64

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Solution

The fourth proportional to 9,979.59, 14,972.43 and 4,718.64 is: 7,079.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.59 : 14,972.43 = 4,718.64 : x
  2. Step 2: Convert to fraction form
    9,979.59/14,972.43 = 4,718.64/x
  3. Step 3: Cross multiply
    9,979.59x = 14,972.43 × 4,718.64
  4. Step 4: Simplify right side
    9,979.59x = 70,649,507.10
  5. Step 5: Solve for x
    x = 70,649,507.10/9,979.59
  6. Step 6: Final answer
    x = 7,079.40

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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.