Home / 10,280.16-15,421.11-4,039.68

Finding the Fourth Proportional to 10,280.16, 15,421.11 and 4,039.68

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Solution

The fourth proportional to 10,280.16, 15,421.11 and 4,039.68 is: 6,059.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.16 : 15,421.11 = 4,039.68 : x
  2. Step 2: Convert to fraction form
    10,280.16/15,421.11 = 4,039.68/x
  3. Step 3: Cross multiply
    10,280.16x = 15,421.11 × 4,039.68
  4. Step 4: Simplify right side
    10,280.16x = 62,296,349.64
  5. Step 5: Solve for x
    x = 62,296,349.64/10,280.16
  6. Step 6: Final answer
    x = 6,059.86

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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.