Home / 10,521.72-14,511.60-6,540.48

Finding the Fourth Proportional to 10,521.72, 14,511.60 and 6,540.48

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Solution

The fourth proportional to 10,521.72, 14,511.60 and 6,540.48 is: 9,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.72 : 14,511.60 = 6,540.48 : x
  2. Step 2: Convert to fraction form
    10,521.72/14,511.60 = 6,540.48/x
  3. Step 3: Cross multiply
    10,521.72x = 14,511.60 × 6,540.48
  4. Step 4: Simplify right side
    10,521.72x = 94,912,829.57
  5. Step 5: Solve for x
    x = 94,912,829.57/10,521.72
  6. Step 6: Final answer
    x = 9,020.66

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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.