Home / 13,854.50-19,119.32-7,566.88

Finding the Fourth Proportional to 13,854.50, 19,119.32 and 7,566.88

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Solution

The fourth proportional to 13,854.50, 19,119.32 and 7,566.88 is: 10,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.50 : 19,119.32 = 7,566.88 : x
  2. Step 2: Convert to fraction form
    13,854.50/19,119.32 = 7,566.88/x
  3. Step 3: Cross multiply
    13,854.50x = 19,119.32 × 7,566.88
  4. Step 4: Simplify right side
    13,854.50x = 144,673,600.12
  5. Step 5: Solve for x
    x = 144,673,600.12/13,854.50
  6. Step 6: Final answer
    x = 10,442.35

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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.