Home / 10,905.60-16,365.56-5,978.68

Finding the Fourth Proportional to 10,905.60, 16,365.56 and 5,978.68

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Solution

The fourth proportional to 10,905.60, 16,365.56 and 5,978.68 is: 8,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.60 : 16,365.56 = 5,978.68 : x
  2. Step 2: Convert to fraction form
    10,905.60/16,365.56 = 5,978.68/x
  3. Step 3: Cross multiply
    10,905.60x = 16,365.56 × 5,978.68
  4. Step 4: Simplify right side
    10,905.60x = 97,844,446.26
  5. Step 5: Solve for x
    x = 97,844,446.26/10,905.60
  6. Step 6: Final answer
    x = 8,971.95

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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.