Home / 10,130.49-15,195.63-3,555.15

Finding the Fourth Proportional to 10,130.49, 15,195.63 and 3,555.15

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Solution

The fourth proportional to 10,130.49, 15,195.63 and 3,555.15 is: 5,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.49 : 15,195.63 = 3,555.15 : x
  2. Step 2: Convert to fraction form
    10,130.49/15,195.63 = 3,555.15/x
  3. Step 3: Cross multiply
    10,130.49x = 15,195.63 × 3,555.15
  4. Step 4: Simplify right side
    10,130.49x = 54,022,743.99
  5. Step 5: Solve for x
    x = 54,022,743.99/10,130.49
  6. Step 6: Final answer
    x = 5,332.69

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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.