Home / 10,555.44-15,835.48-3,981.68

Finding the Fourth Proportional to 10,555.44, 15,835.48 and 3,981.68

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Solution

The fourth proportional to 10,555.44, 15,835.48 and 3,981.68 is: 5,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.44 : 15,835.48 = 3,981.68 : x
  2. Step 2: Convert to fraction form
    10,555.44/15,835.48 = 3,981.68/x
  3. Step 3: Cross multiply
    10,555.44x = 15,835.48 × 3,981.68
  4. Step 4: Simplify right side
    10,555.44x = 63,051,814.01
  5. Step 5: Solve for x
    x = 63,051,814.01/10,555.44
  6. Step 6: Final answer
    x = 5,973.40

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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.