Home / 15,433.02-21,297.48-8,720.82

Finding the Fourth Proportional to 15,433.02, 21,297.48 and 8,720.82

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Solution

The fourth proportional to 15,433.02, 21,297.48 and 8,720.82 is: 12,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.02 : 21,297.48 = 8,720.82 : x
  2. Step 2: Convert to fraction form
    15,433.02/21,297.48 = 8,720.82/x
  3. Step 3: Cross multiply
    15,433.02x = 21,297.48 × 8,720.82
  4. Step 4: Simplify right side
    15,433.02x = 185,731,489.53
  5. Step 5: Solve for x
    x = 185,731,489.53/15,433.02
  6. Step 6: Final answer
    x = 12,034.68

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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.