Home / 10,136.57-13,988.48-5,660.32

Finding the Fourth Proportional to 10,136.57, 13,988.48 and 5,660.32

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Solution

The fourth proportional to 10,136.57, 13,988.48 and 5,660.32 is: 7,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.57 : 13,988.48 = 5,660.32 : x
  2. Step 2: Convert to fraction form
    10,136.57/13,988.48 = 5,660.32/x
  3. Step 3: Cross multiply
    10,136.57x = 13,988.48 × 5,660.32
  4. Step 4: Simplify right side
    10,136.57x = 79,179,174.87
  5. Step 5: Solve for x
    x = 79,179,174.87/10,136.57
  6. Step 6: Final answer
    x = 7,811.24

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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.