Home / 10,420.21-15,627.05-3,025.18

Finding the Fourth Proportional to 10,420.21, 15,627.05 and 3,025.18

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Solution

The fourth proportional to 10,420.21, 15,627.05 and 3,025.18 is: 4,536.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.21 : 15,627.05 = 3,025.18 : x
  2. Step 2: Convert to fraction form
    10,420.21/15,627.05 = 3,025.18/x
  3. Step 3: Cross multiply
    10,420.21x = 15,627.05 × 3,025.18
  4. Step 4: Simplify right side
    10,420.21x = 47,274,639.12
  5. Step 5: Solve for x
    x = 47,274,639.12/10,420.21
  6. Step 6: Final answer
    x = 4,536.82

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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.