Home / 11,111.20-16,666.80-10,017.70

Finding the Fourth Proportional to 11,111.20, 16,666.80 and 10,017.70

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Solution

The fourth proportional to 11,111.20, 16,666.80 and 10,017.70 is: 15,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.20 : 16,666.80 = 10,017.70 : x
  2. Step 2: Convert to fraction form
    11,111.20/16,666.80 = 10,017.70/x
  3. Step 3: Cross multiply
    11,111.20x = 16,666.80 × 10,017.70
  4. Step 4: Simplify right side
    11,111.20x = 166,963,002.36
  5. Step 5: Solve for x
    x = 166,963,002.36/11,111.20
  6. Step 6: Final answer
    x = 15,026.55

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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.