Home / 8,521.28-11,759.52-4,985.60

Finding the Fourth Proportional to 8,521.28, 11,759.52 and 4,985.60

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Solution

The fourth proportional to 8,521.28, 11,759.52 and 4,985.60 is: 6,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.28 : 11,759.52 = 4,985.60 : x
  2. Step 2: Convert to fraction form
    8,521.28/11,759.52 = 4,985.60/x
  3. Step 3: Cross multiply
    8,521.28x = 11,759.52 × 4,985.60
  4. Step 4: Simplify right side
    8,521.28x = 58,628,262.91
  5. Step 5: Solve for x
    x = 58,628,262.91/8,521.28
  6. Step 6: Final answer
    x = 6,880.22

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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.