Home / 15,159.81-22,718.64-13,181.38

Finding the Fourth Proportional to 15,159.81, 22,718.64 and 13,181.38

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Solution

The fourth proportional to 15,159.81, 22,718.64 and 13,181.38 is: 19,753.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.81 : 22,718.64 = 13,181.38 : x
  2. Step 2: Convert to fraction form
    15,159.81/22,718.64 = 13,181.38/x
  3. Step 3: Cross multiply
    15,159.81x = 22,718.64 × 13,181.38
  4. Step 4: Simplify right side
    15,159.81x = 299,463,026.92
  5. Step 5: Solve for x
    x = 299,463,026.92/15,159.81
  6. Step 6: Final answer
    x = 19,753.75

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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.