Home / 8,915.52-12,304.80-5,087.16

Finding the Fourth Proportional to 8,915.52, 12,304.80 and 5,087.16

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Solution

The fourth proportional to 8,915.52, 12,304.80 and 5,087.16 is: 7,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.52 : 12,304.80 = 5,087.16 : x
  2. Step 2: Convert to fraction form
    8,915.52/12,304.80 = 5,087.16/x
  3. Step 3: Cross multiply
    8,915.52x = 12,304.80 × 5,087.16
  4. Step 4: Simplify right side
    8,915.52x = 62,596,486.37
  5. Step 5: Solve for x
    x = 62,596,486.37/8,915.52
  6. Step 6: Final answer
    x = 7,021.07

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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.