Home / 9,988.96-13,784.52-5,512.68

Finding the Fourth Proportional to 9,988.96, 13,784.52 and 5,512.68

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Solution

The fourth proportional to 9,988.96, 13,784.52 and 5,512.68 is: 7,607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.96 : 13,784.52 = 5,512.68 : x
  2. Step 2: Convert to fraction form
    9,988.96/13,784.52 = 5,512.68/x
  3. Step 3: Cross multiply
    9,988.96x = 13,784.52 × 5,512.68
  4. Step 4: Simplify right side
    9,988.96x = 75,989,647.71
  5. Step 5: Solve for x
    x = 75,989,647.71/9,988.96
  6. Step 6: Final answer
    x = 7,607.36

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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.