Home / 10,731.40-16,097.10-7,390.60

Finding the Fourth Proportional to 10,731.40, 16,097.10 and 7,390.60

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Solution

The fourth proportional to 10,731.40, 16,097.10 and 7,390.60 is: 11,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,731.40 : 16,097.10 = 7,390.60 : x
  2. Step 2: Convert to fraction form
    10,731.40/16,097.10 = 7,390.60/x
  3. Step 3: Cross multiply
    10,731.40x = 16,097.10 × 7,390.60
  4. Step 4: Simplify right side
    10,731.40x = 118,967,227.26
  5. Step 5: Solve for x
    x = 118,967,227.26/10,731.40
  6. Step 6: Final answer
    x = 11,085.90

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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.