Home / 11,111.70-16,667.55-10,266.90

Finding the Fourth Proportional to 11,111.70, 16,667.55 and 10,266.90

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Solution

The fourth proportional to 11,111.70, 16,667.55 and 10,266.90 is: 15,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.70 : 16,667.55 = 10,266.90 : x
  2. Step 2: Convert to fraction form
    11,111.70/16,667.55 = 10,266.90/x
  3. Step 3: Cross multiply
    11,111.70x = 16,667.55 × 10,266.90
  4. Step 4: Simplify right side
    11,111.70x = 171,124,069.10
  5. Step 5: Solve for x
    x = 171,124,069.10/11,111.70
  6. Step 6: Final answer
    x = 15,400.35

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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.