Home / 13,111.70-19,666.65-4,226.90

Finding the Fourth Proportional to 13,111.70, 19,666.65 and 4,226.90

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Solution

The fourth proportional to 13,111.70, 19,666.65 and 4,226.90 is: 6,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.70 : 19,666.65 = 4,226.90 : x
  2. Step 2: Convert to fraction form
    13,111.70/19,666.65 = 4,226.90/x
  3. Step 3: Cross multiply
    13,111.70x = 19,666.65 × 4,226.90
  4. Step 4: Simplify right side
    13,111.70x = 83,128,962.89
  5. Step 5: Solve for x
    x = 83,128,962.89/13,111.70
  6. Step 6: Final answer
    x = 6,340.06

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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.