Home / 7,346.18-10,137.53-3,988.84

Finding the Fourth Proportional to 7,346.18, 10,137.53 and 3,988.84

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Solution

The fourth proportional to 7,346.18, 10,137.53 and 3,988.84 is: 5,504.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.18 : 10,137.53 = 3,988.84 : x
  2. Step 2: Convert to fraction form
    7,346.18/10,137.53 = 3,988.84/x
  3. Step 3: Cross multiply
    7,346.18x = 10,137.53 × 3,988.84
  4. Step 4: Simplify right side
    7,346.18x = 40,436,985.17
  5. Step 5: Solve for x
    x = 40,436,985.17/7,346.18
  6. Step 6: Final answer
    x = 5,504.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.