Home / 15,341.68-21,181.80-10,313.38

Finding the Fourth Proportional to 15,341.68, 21,181.80 and 10,313.38

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Solution

The fourth proportional to 15,341.68, 21,181.80 and 10,313.38 is: 14,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.68 : 21,181.80 = 10,313.38 : x
  2. Step 2: Convert to fraction form
    15,341.68/21,181.80 = 10,313.38/x
  3. Step 3: Cross multiply
    15,341.68x = 21,181.80 × 10,313.38
  4. Step 4: Simplify right side
    15,341.68x = 218,455,952.48
  5. Step 5: Solve for x
    x = 218,455,952.48/15,341.68
  6. Step 6: Final answer
    x = 14,239.38

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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.