Home / 15,419.53-21,282.94-10,055.34

Finding the Fourth Proportional to 15,419.53, 21,282.94 and 10,055.34

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Solution

The fourth proportional to 15,419.53, 21,282.94 and 10,055.34 is: 13,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.53 : 21,282.94 = 10,055.34 : x
  2. Step 2: Convert to fraction form
    15,419.53/21,282.94 = 10,055.34/x
  3. Step 3: Cross multiply
    15,419.53x = 21,282.94 × 10,055.34
  4. Step 4: Simplify right side
    15,419.53x = 214,007,210.47
  5. Step 5: Solve for x
    x = 214,007,210.47/15,419.53
  6. Step 6: Final answer
    x = 13,878.97

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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.