Home / 6,988.78-9,644.55-4,004.74

Finding the Fourth Proportional to 6,988.78, 9,644.55 and 4,004.74

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Solution

The fourth proportional to 6,988.78, 9,644.55 and 4,004.74 is: 5,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.78 : 9,644.55 = 4,004.74 : x
  2. Step 2: Convert to fraction form
    6,988.78/9,644.55 = 4,004.74/x
  3. Step 3: Cross multiply
    6,988.78x = 9,644.55 × 4,004.74
  4. Step 4: Simplify right side
    6,988.78x = 38,623,866.94
  5. Step 5: Solve for x
    x = 38,623,866.94/6,988.78
  6. Step 6: Final answer
    x = 5,526.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.