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Finding the Fourth Proportional to 6,988.34, 10,482.54 and 6,637.97

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Solution

The fourth proportional to 6,988.34, 10,482.54 and 6,637.97 is: 9,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.34 : 10,482.54 = 6,637.97 : x
  2. Step 2: Convert to fraction form
    6,988.34/10,482.54 = 6,637.97/x
  3. Step 3: Cross multiply
    6,988.34x = 10,482.54 × 6,637.97
  4. Step 4: Simplify right side
    6,988.34x = 69,582,786.04
  5. Step 5: Solve for x
    x = 69,582,786.04/6,988.34
  6. Step 6: Final answer
    x = 9,956.98

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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.