Home / 16,147.32-22,283.40-9,771.80

Finding the Fourth Proportional to 16,147.32, 22,283.40 and 9,771.80

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Solution

The fourth proportional to 16,147.32, 22,283.40 and 9,771.80 is: 13,485.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,147.32 : 22,283.40 = 9,771.80 : x
  2. Step 2: Convert to fraction form
    16,147.32/22,283.40 = 9,771.80/x
  3. Step 3: Cross multiply
    16,147.32x = 22,283.40 × 9,771.80
  4. Step 4: Simplify right side
    16,147.32x = 217,748,928.12
  5. Step 5: Solve for x
    x = 217,748,928.12/16,147.32
  6. Step 6: Final answer
    x = 13,485.14

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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.