Home / 10,688.57-16,036.09-5,140.34

Finding the Fourth Proportional to 10,688.57, 16,036.09 and 5,140.34

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Solution

The fourth proportional to 10,688.57, 16,036.09 and 5,140.34 is: 7,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.57 : 16,036.09 = 5,140.34 : x
  2. Step 2: Convert to fraction form
    10,688.57/16,036.09 = 5,140.34/x
  3. Step 3: Cross multiply
    10,688.57x = 16,036.09 × 5,140.34
  4. Step 4: Simplify right side
    10,688.57x = 82,430,874.69
  5. Step 5: Solve for x
    x = 82,430,874.69/10,688.57
  6. Step 6: Final answer
    x = 7,712.06

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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.