Home / 9,799.79-13,520.38-6,442.34

Finding the Fourth Proportional to 9,799.79, 13,520.38 and 6,442.34

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Solution

The fourth proportional to 9,799.79, 13,520.38 and 6,442.34 is: 8,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,799.79 : 13,520.38 = 6,442.34 : x
  2. Step 2: Convert to fraction form
    9,799.79/13,520.38 = 6,442.34/x
  3. Step 3: Cross multiply
    9,799.79x = 13,520.38 × 6,442.34
  4. Step 4: Simplify right side
    9,799.79x = 87,102,884.89
  5. Step 5: Solve for x
    x = 87,102,884.89/9,799.79
  6. Step 6: Final answer
    x = 8,888.24

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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.