Home / 10,157.49-15,239.70-5,477.94

Finding the Fourth Proportional to 10,157.49, 15,239.70 and 5,477.94

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Solution

The fourth proportional to 10,157.49, 15,239.70 and 5,477.94 is: 8,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.49 : 15,239.70 = 5,477.94 : x
  2. Step 2: Convert to fraction form
    10,157.49/15,239.70 = 5,477.94/x
  3. Step 3: Cross multiply
    10,157.49x = 15,239.70 × 5,477.94
  4. Step 4: Simplify right side
    10,157.49x = 83,482,162.22
  5. Step 5: Solve for x
    x = 83,482,162.22/10,157.49
  6. Step 6: Final answer
    x = 8,218.78

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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.