Home / 7,188.53-9,915.75-5,060.30

Finding the Fourth Proportional to 7,188.53, 9,915.75 and 5,060.30

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Solution

The fourth proportional to 7,188.53, 9,915.75 and 5,060.30 is: 6,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.53 : 9,915.75 = 5,060.30 : x
  2. Step 2: Convert to fraction form
    7,188.53/9,915.75 = 5,060.30/x
  3. Step 3: Cross multiply
    7,188.53x = 9,915.75 × 5,060.30
  4. Step 4: Simplify right side
    7,188.53x = 50,176,620.15
  5. Step 5: Solve for x
    x = 50,176,620.15/7,188.53
  6. Step 6: Final answer
    x = 6,980.10

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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.