Home / 15,090.77-20,832.24-9,043.89

Finding the Fourth Proportional to 15,090.77, 20,832.24 and 9,043.89

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Solution

The fourth proportional to 15,090.77, 20,832.24 and 9,043.89 is: 12,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.77 : 20,832.24 = 9,043.89 : x
  2. Step 2: Convert to fraction form
    15,090.77/20,832.24 = 9,043.89/x
  3. Step 3: Cross multiply
    15,090.77x = 20,832.24 × 9,043.89
  4. Step 4: Simplify right side
    15,090.77x = 188,404,442.81
  5. Step 5: Solve for x
    x = 188,404,442.81/15,090.77
  6. Step 6: Final answer
    x = 12,484.74

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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.