Home / 13,890.83-19,167.66-11,065.40

Finding the Fourth Proportional to 13,890.83, 19,167.66 and 11,065.40

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Solution

The fourth proportional to 13,890.83, 19,167.66 and 11,065.40 is: 15,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.83 : 19,167.66 = 11,065.40 : x
  2. Step 2: Convert to fraction form
    13,890.83/19,167.66 = 11,065.40/x
  3. Step 3: Cross multiply
    13,890.83x = 19,167.66 × 11,065.40
  4. Step 4: Simplify right side
    13,890.83x = 212,097,824.96
  5. Step 5: Solve for x
    x = 212,097,824.96/13,890.83
  6. Step 6: Final answer
    x = 15,268.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.