Home / 13,905.09-20,848.40-9,750.12

Finding the Fourth Proportional to 13,905.09, 20,848.40 and 9,750.12

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Solution

The fourth proportional to 13,905.09, 20,848.40 and 9,750.12 is: 14,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.09 : 20,848.40 = 9,750.12 : x
  2. Step 2: Convert to fraction form
    13,905.09/20,848.40 = 9,750.12/x
  3. Step 3: Cross multiply
    13,905.09x = 20,848.40 × 9,750.12
  4. Step 4: Simplify right side
    13,905.09x = 203,274,353.06
  5. Step 5: Solve for x
    x = 203,274,353.06/13,905.09
  6. Step 6: Final answer
    x = 14,618.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.