Home / 10,243.40-15,368.92-4,321.83

Finding the Fourth Proportional to 10,243.40, 15,368.92 and 4,321.83

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Solution

The fourth proportional to 10,243.40, 15,368.92 and 4,321.83 is: 6,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.40 : 15,368.92 = 4,321.83 : x
  2. Step 2: Convert to fraction form
    10,243.40/15,368.92 = 4,321.83/x
  3. Step 3: Cross multiply
    10,243.40x = 15,368.92 × 4,321.83
  4. Step 4: Simplify right side
    10,243.40x = 66,421,848.72
  5. Step 5: Solve for x
    x = 66,421,848.72/10,243.40
  6. Step 6: Final answer
    x = 6,484.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.