Home / 9,898.47-13,654.04-5,703.75

Finding the Fourth Proportional to 9,898.47, 13,654.04 and 5,703.75

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Solution

The fourth proportional to 9,898.47, 13,654.04 and 5,703.75 is: 7,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.47 : 13,654.04 = 5,703.75 : x
  2. Step 2: Convert to fraction form
    9,898.47/13,654.04 = 5,703.75/x
  3. Step 3: Cross multiply
    9,898.47x = 13,654.04 × 5,703.75
  4. Step 4: Simplify right side
    9,898.47x = 77,879,202.13
  5. Step 5: Solve for x
    x = 77,879,202.13/9,898.47
  6. Step 6: Final answer
    x = 7,867.80

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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.