Home / 8,521.23-12,783.36-2,899.43

Finding the Fourth Proportional to 8,521.23, 12,783.36 and 2,899.43

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Solution

The fourth proportional to 8,521.23, 12,783.36 and 2,899.43 is: 4,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.23 : 12,783.36 = 2,899.43 : x
  2. Step 2: Convert to fraction form
    8,521.23/12,783.36 = 2,899.43/x
  3. Step 3: Cross multiply
    8,521.23x = 12,783.36 × 2,899.43
  4. Step 4: Simplify right side
    8,521.23x = 37,064,393.57
  5. Step 5: Solve for x
    x = 37,064,393.57/8,521.23
  6. Step 6: Final answer
    x = 4,349.65

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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.