Home / 8,742.39-13,113.60-2,897.63

Finding the Fourth Proportional to 8,742.39, 13,113.60 and 2,897.63

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Solution

The fourth proportional to 8,742.39, 13,113.60 and 2,897.63 is: 4,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.39 : 13,113.60 = 2,897.63 : x
  2. Step 2: Convert to fraction form
    8,742.39/13,113.60 = 2,897.63/x
  3. Step 3: Cross multiply
    8,742.39x = 13,113.60 × 2,897.63
  4. Step 4: Simplify right side
    8,742.39x = 37,998,346.28
  5. Step 5: Solve for x
    x = 37,998,346.28/8,742.39
  6. Step 6: Final answer
    x = 4,346.45

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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.