Home / 15,035.60-20,757.45-11,257.40

Finding the Fourth Proportional to 15,035.60, 20,757.45 and 11,257.40

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Solution

The fourth proportional to 15,035.60, 20,757.45 and 11,257.40 is: 15,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.60 : 20,757.45 = 11,257.40 : x
  2. Step 2: Convert to fraction form
    15,035.60/20,757.45 = 11,257.40/x
  3. Step 3: Cross multiply
    15,035.60x = 20,757.45 × 11,257.40
  4. Step 4: Simplify right side
    15,035.60x = 233,674,917.63
  5. Step 5: Solve for x
    x = 233,674,917.63/15,035.60
  6. Step 6: Final answer
    x = 15,541.44

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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.