Home / 9,988.30-13,784.43-5,512.06

Finding the Fourth Proportional to 9,988.30, 13,784.43 and 5,512.06

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Solution

The fourth proportional to 9,988.30, 13,784.43 and 5,512.06 is: 7,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.30 : 13,784.43 = 5,512.06 : x
  2. Step 2: Convert to fraction form
    9,988.30/13,784.43 = 5,512.06/x
  3. Step 3: Cross multiply
    9,988.30x = 13,784.43 × 5,512.06
  4. Step 4: Simplify right side
    9,988.30x = 75,980,605.23
  5. Step 5: Solve for x
    x = 75,980,605.23/9,988.30
  6. Step 6: Final answer
    x = 7,606.96

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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.