Home / 6,897.60-10,336.68-4,428.72

Finding the Fourth Proportional to 6,897.60, 10,336.68 and 4,428.72

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Solution

The fourth proportional to 6,897.60, 10,336.68 and 4,428.72 is: 6,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.60 : 10,336.68 = 4,428.72 : x
  2. Step 2: Convert to fraction form
    6,897.60/10,336.68 = 4,428.72/x
  3. Step 3: Cross multiply
    6,897.60x = 10,336.68 × 4,428.72
  4. Step 4: Simplify right side
    6,897.60x = 45,778,261.45
  5. Step 5: Solve for x
    x = 45,778,261.45/6,897.60
  6. Step 6: Final answer
    x = 6,636.84

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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.