Home / 13,784.92-20,678.02-4,425.32

Finding the Fourth Proportional to 13,784.92, 20,678.02 and 4,425.32

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Solution

The fourth proportional to 13,784.92, 20,678.02 and 4,425.32 is: 6,638.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.92 : 20,678.02 = 4,425.32 : x
  2. Step 2: Convert to fraction form
    13,784.92/20,678.02 = 4,425.32/x
  3. Step 3: Cross multiply
    13,784.92x = 20,678.02 × 4,425.32
  4. Step 4: Simplify right side
    13,784.92x = 91,506,855.47
  5. Step 5: Solve for x
    x = 91,506,855.47/13,784.92
  6. Step 6: Final answer
    x = 6,638.19

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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.