Home / 15,090.77-20,824.28-8,376.07

Finding the Fourth Proportional to 15,090.77, 20,824.28 and 8,376.07

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Solution

The fourth proportional to 15,090.77, 20,824.28 and 8,376.07 is: 11,558.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.77 : 20,824.28 = 8,376.07 : x
  2. Step 2: Convert to fraction form
    15,090.77/20,824.28 = 8,376.07/x
  3. Step 3: Cross multiply
    15,090.77x = 20,824.28 × 8,376.07
  4. Step 4: Simplify right side
    15,090.77x = 174,425,585.10
  5. Step 5: Solve for x
    x = 174,425,585.10/15,090.77
  6. Step 6: Final answer
    x = 11,558.43

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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.