Home / 10,521.37-15,785.85-6,514.09

Finding the Fourth Proportional to 10,521.37, 15,785.85 and 6,514.09

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Solution

The fourth proportional to 10,521.37, 15,785.85 and 6,514.09 is: 9,773.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.37 : 15,785.85 = 6,514.09 : x
  2. Step 2: Convert to fraction form
    10,521.37/15,785.85 = 6,514.09/x
  3. Step 3: Cross multiply
    10,521.37x = 15,785.85 × 6,514.09
  4. Step 4: Simplify right side
    10,521.37x = 102,830,438.41
  5. Step 5: Solve for x
    x = 102,830,438.41/10,521.37
  6. Step 6: Final answer
    x = 9,773.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.