Home / 9,989.02-13,784.86-5,512.74

Finding the Fourth Proportional to 9,989.02, 13,784.86 and 5,512.74

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Solution

The fourth proportional to 9,989.02, 13,784.86 and 5,512.74 is: 7,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.02 : 13,784.86 = 5,512.74 : x
  2. Step 2: Convert to fraction form
    9,989.02/13,784.86 = 5,512.74/x
  3. Step 3: Cross multiply
    9,989.02x = 13,784.86 × 5,512.74
  4. Step 4: Simplify right side
    9,989.02x = 75,992,349.12
  5. Step 5: Solve for x
    x = 75,992,349.12/9,989.02
  6. Step 6: Final answer
    x = 7,607.59

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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.