Home / 15,064.90-20,785.32-8,776.06

Finding the Fourth Proportional to 15,064.90, 20,785.32 and 8,776.06

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Solution

The fourth proportional to 15,064.90, 20,785.32 and 8,776.06 is: 12,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064.90 : 20,785.32 = 8,776.06 : x
  2. Step 2: Convert to fraction form
    15,064.90/20,785.32 = 8,776.06/x
  3. Step 3: Cross multiply
    15,064.90x = 20,785.32 × 8,776.06
  4. Step 4: Simplify right side
    15,064.90x = 182,413,215.44
  5. Step 5: Solve for x
    x = 182,413,215.44/15,064.90
  6. Step 6: Final answer
    x = 12,108.49

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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.