Home / 15,073.40-20,801.85-11,289.89

Finding the Fourth Proportional to 15,073.40, 20,801.85 and 11,289.89

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Solution

The fourth proportional to 15,073.40, 20,801.85 and 11,289.89 is: 15,580.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.40 : 20,801.85 = 11,289.89 : x
  2. Step 2: Convert to fraction form
    15,073.40/20,801.85 = 11,289.89/x
  3. Step 3: Cross multiply
    15,073.40x = 20,801.85 × 11,289.89
  4. Step 4: Simplify right side
    15,073.40x = 234,850,607.96
  5. Step 5: Solve for x
    x = 234,850,607.96/15,073.40
  6. Step 6: Final answer
    x = 15,580.46

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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.