Home / 13,442.85-18,544.04-7,988.82

Finding the Fourth Proportional to 13,442.85, 18,544.04 and 7,988.82

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Solution

The fourth proportional to 13,442.85, 18,544.04 and 7,988.82 is: 11,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.85 : 18,544.04 = 7,988.82 : x
  2. Step 2: Convert to fraction form
    13,442.85/18,544.04 = 7,988.82/x
  3. Step 3: Cross multiply
    13,442.85x = 18,544.04 × 7,988.82
  4. Step 4: Simplify right side
    13,442.85x = 148,144,957.69
  5. Step 5: Solve for x
    x = 148,144,957.69/13,442.85
  6. Step 6: Final answer
    x = 11,020.35

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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.