Home / 10,865.60-16,283.52-7,930.16

Finding the Fourth Proportional to 10,865.60, 16,283.52 and 7,930.16

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Solution

The fourth proportional to 10,865.60, 16,283.52 and 7,930.16 is: 11,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.60 : 16,283.52 = 7,930.16 : x
  2. Step 2: Convert to fraction form
    10,865.60/16,283.52 = 7,930.16/x
  3. Step 3: Cross multiply
    10,865.60x = 16,283.52 × 7,930.16
  4. Step 4: Simplify right side
    10,865.60x = 129,130,918.96
  5. Step 5: Solve for x
    x = 129,130,918.96/10,865.60
  6. Step 6: Final answer
    x = 11,884.38

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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.