Home / 9,894.48-13,654.40-5,357.21

Finding the Fourth Proportional to 9,894.48, 13,654.40 and 5,357.21

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Solution

The fourth proportional to 9,894.48, 13,654.40 and 5,357.21 is: 7,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,894.48 : 13,654.40 = 5,357.21 : x
  2. Step 2: Convert to fraction form
    9,894.48/13,654.40 = 5,357.21/x
  3. Step 3: Cross multiply
    9,894.48x = 13,654.40 × 5,357.21
  4. Step 4: Simplify right side
    9,894.48x = 73,149,488.22
  5. Step 5: Solve for x
    x = 73,149,488.22/9,894.48
  6. Step 6: Final answer
    x = 7,392.96

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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.