Home / 12,904.13-19,356.26-3,670.13

Finding the Fourth Proportional to 12,904.13, 19,356.26 and 3,670.13

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Solution

The fourth proportional to 12,904.13, 19,356.26 and 3,670.13 is: 5,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.13 : 19,356.26 = 3,670.13 : x
  2. Step 2: Convert to fraction form
    12,904.13/19,356.26 = 3,670.13/x
  3. Step 3: Cross multiply
    12,904.13x = 19,356.26 × 3,670.13
  4. Step 4: Simplify right side
    12,904.13x = 71,039,875.38
  5. Step 5: Solve for x
    x = 71,039,875.38/12,904.13
  6. Step 6: Final answer
    x = 5,505.21

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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.