Home / 10,230.10-15,341.84-3,988.58

Finding the Fourth Proportional to 10,230.10, 15,341.84 and 3,988.58

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Solution

The fourth proportional to 10,230.10, 15,341.84 and 3,988.58 is: 5,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,230.10 : 15,341.84 = 3,988.58 : x
  2. Step 2: Convert to fraction form
    10,230.10/15,341.84 = 3,988.58/x
  3. Step 3: Cross multiply
    10,230.10x = 15,341.84 × 3,988.58
  4. Step 4: Simplify right side
    10,230.10x = 61,192,074.49
  5. Step 5: Solve for x
    x = 61,192,074.49/10,230.10
  6. Step 6: Final answer
    x = 5,981.57

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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.