Home / 15,645.49-23,473.47-5,115.99

Finding the Fourth Proportional to 15,645.49, 23,473.47 and 5,115.99

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Solution

The fourth proportional to 15,645.49, 23,473.47 and 5,115.99 is: 7,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.49 : 23,473.47 = 5,115.99 : x
  2. Step 2: Convert to fraction form
    15,645.49/23,473.47 = 5,115.99/x
  3. Step 3: Cross multiply
    15,645.49x = 23,473.47 × 5,115.99
  4. Step 4: Simplify right side
    15,645.49x = 120,090,145.21
  5. Step 5: Solve for x
    x = 120,090,145.21/15,645.49
  6. Step 6: Final answer
    x = 7,675.70

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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.