Home / 13,699.86-20,549.91-4,339.71

Finding the Fourth Proportional to 13,699.86, 20,549.91 and 4,339.71

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Solution

The fourth proportional to 13,699.86, 20,549.91 and 4,339.71 is: 6,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.86 : 20,549.91 = 4,339.71 : x
  2. Step 2: Convert to fraction form
    13,699.86/20,549.91 = 4,339.71/x
  3. Step 3: Cross multiply
    13,699.86x = 20,549.91 × 4,339.71
  4. Step 4: Simplify right side
    13,699.86x = 89,180,649.93
  5. Step 5: Solve for x
    x = 89,180,649.93/13,699.86
  6. Step 6: Final answer
    x = 6,509.60

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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.