Home / 16,435.71-22,679.60-9,720.03

Finding the Fourth Proportional to 16,435.71, 22,679.60 and 9,720.03

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Solution

The fourth proportional to 16,435.71, 22,679.60 and 9,720.03 is: 13,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,435.71 : 22,679.60 = 9,720.03 : x
  2. Step 2: Convert to fraction form
    16,435.71/22,679.60 = 9,720.03/x
  3. Step 3: Cross multiply
    16,435.71x = 22,679.60 × 9,720.03
  4. Step 4: Simplify right side
    16,435.71x = 220,446,237.48
  5. Step 5: Solve for x
    x = 220,446,237.48/16,435.71
  6. Step 6: Final answer
    x = 13,412.64

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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.