Home / 18,660.04-27,979.53-6,968.50

Finding the Fourth Proportional to 18,660.04, 27,979.53 and 6,968.50

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Solution

The fourth proportional to 18,660.04, 27,979.53 and 6,968.50 is: 10,448.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.04 : 27,979.53 = 6,968.50 : x
  2. Step 2: Convert to fraction form
    18,660.04/27,979.53 = 6,968.50/x
  3. Step 3: Cross multiply
    18,660.04x = 27,979.53 × 6,968.50
  4. Step 4: Simplify right side
    18,660.04x = 194,975,354.81
  5. Step 5: Solve for x
    x = 194,975,354.81/18,660.04
  6. Step 6: Final answer
    x = 10,448.82

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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.