Home / 17,887.40-26,856.70-10,111.40

Finding the Fourth Proportional to 17,887.40, 26,856.70 and 10,111.40

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Solution

The fourth proportional to 17,887.40, 26,856.70 and 10,111.40 is: 15,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.40 : 26,856.70 = 10,111.40 : x
  2. Step 2: Convert to fraction form
    17,887.40/26,856.70 = 10,111.40/x
  3. Step 3: Cross multiply
    17,887.40x = 26,856.70 × 10,111.40
  4. Step 4: Simplify right side
    17,887.40x = 271,558,836.38
  5. Step 5: Solve for x
    x = 271,558,836.38/17,887.40
  6. Step 6: Final answer
    x = 15,181.57

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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.