Home / 13,659.86-20,477.57-5,337.92

Finding the Fourth Proportional to 13,659.86, 20,477.57 and 5,337.92

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Solution

The fourth proportional to 13,659.86, 20,477.57 and 5,337.92 is: 8,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.86 : 20,477.57 = 5,337.92 : x
  2. Step 2: Convert to fraction form
    13,659.86/20,477.57 = 5,337.92/x
  3. Step 3: Cross multiply
    13,659.86x = 20,477.57 × 5,337.92
  4. Step 4: Simplify right side
    13,659.86x = 109,307,501.38
  5. Step 5: Solve for x
    x = 109,307,501.38/13,659.86
  6. Step 6: Final answer
    x = 8,002.10

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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.