Home / 11,247.36-15,521.40-6,211.50

Finding the Fourth Proportional to 11,247.36, 15,521.40 and 6,211.50

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Solution

The fourth proportional to 11,247.36, 15,521.40 and 6,211.50 is: 8,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.36 : 15,521.40 = 6,211.50 : x
  2. Step 2: Convert to fraction form
    11,247.36/15,521.40 = 6,211.50/x
  3. Step 3: Cross multiply
    11,247.36x = 15,521.40 × 6,211.50
  4. Step 4: Simplify right side
    11,247.36x = 96,411,176.10
  5. Step 5: Solve for x
    x = 96,411,176.10/11,247.36
  6. Step 6: Final answer
    x = 8,571.89

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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.