Home / 16,189.04-22,342.56-9,905.60

Finding the Fourth Proportional to 16,189.04, 22,342.56 and 9,905.60

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Solution

The fourth proportional to 16,189.04, 22,342.56 and 9,905.60 is: 13,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,189.04 : 22,342.56 = 9,905.60 : x
  2. Step 2: Convert to fraction form
    16,189.04/22,342.56 = 9,905.60/x
  3. Step 3: Cross multiply
    16,189.04x = 22,342.56 × 9,905.60
  4. Step 4: Simplify right side
    16,189.04x = 221,316,462.34
  5. Step 5: Solve for x
    x = 221,316,462.34/16,189.04
  6. Step 6: Final answer
    x = 13,670.76

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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.