Home / 6,988.86-9,643.35-4,004.01

Finding the Fourth Proportional to 6,988.86, 9,643.35 and 4,004.01

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Solution

The fourth proportional to 6,988.86, 9,643.35 and 4,004.01 is: 5,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.86 : 9,643.35 = 4,004.01 : x
  2. Step 2: Convert to fraction form
    6,988.86/9,643.35 = 4,004.01/x
  3. Step 3: Cross multiply
    6,988.86x = 9,643.35 × 4,004.01
  4. Step 4: Simplify right side
    6,988.86x = 38,612,069.83
  5. Step 5: Solve for x
    x = 38,612,069.83/6,988.86
  6. Step 6: Final answer
    x = 5,524.80

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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.