Home / 13,390.07-20,071.16-4,498.80

Finding the Fourth Proportional to 13,390.07, 20,071.16 and 4,498.80

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Solution

The fourth proportional to 13,390.07, 20,071.16 and 4,498.80 is: 6,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.07 : 20,071.16 = 4,498.80 : x
  2. Step 2: Convert to fraction form
    13,390.07/20,071.16 = 4,498.80/x
  3. Step 3: Cross multiply
    13,390.07x = 20,071.16 × 4,498.80
  4. Step 4: Simplify right side
    13,390.07x = 90,296,145.86
  5. Step 5: Solve for x
    x = 90,296,145.86/13,390.07
  6. Step 6: Final answer
    x = 6,743.52

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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.