Home / 10,420.58-15,629.99-4,095.59

Finding the Fourth Proportional to 10,420.58, 15,629.99 and 4,095.59

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Solution

The fourth proportional to 10,420.58, 15,629.99 and 4,095.59 is: 6,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.58 : 15,629.99 = 4,095.59 : x
  2. Step 2: Convert to fraction form
    10,420.58/15,629.99 = 4,095.59/x
  3. Step 3: Cross multiply
    10,420.58x = 15,629.99 × 4,095.59
  4. Step 4: Simplify right side
    10,420.58x = 64,014,030.74
  5. Step 5: Solve for x
    x = 64,014,030.74/10,420.58
  6. Step 6: Final answer
    x = 6,143.04

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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.