Home / 13,699.63-20,549.45-4,339.68

Finding the Fourth Proportional to 13,699.63, 20,549.45 and 4,339.68

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Solution

The fourth proportional to 13,699.63, 20,549.45 and 4,339.68 is: 6,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.63 : 20,549.45 = 4,339.68 : x
  2. Step 2: Convert to fraction form
    13,699.63/20,549.45 = 4,339.68/x
  3. Step 3: Cross multiply
    13,699.63x = 20,549.45 × 4,339.68
  4. Step 4: Simplify right side
    13,699.63x = 89,178,037.18
  5. Step 5: Solve for x
    x = 89,178,037.18/13,699.63
  6. Step 6: Final answer
    x = 6,509.52

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Similar ratio
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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.