Home / 10,403.18-15,588.38-3,820.32

Finding the Fourth Proportional to 10,403.18, 15,588.38 and 3,820.32

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Solution

The fourth proportional to 10,403.18, 15,588.38 and 3,820.32 is: 5,724.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.18 : 15,588.38 = 3,820.32 : x
  2. Step 2: Convert to fraction form
    10,403.18/15,588.38 = 3,820.32/x
  3. Step 3: Cross multiply
    10,403.18x = 15,588.38 × 3,820.32
  4. Step 4: Simplify right side
    10,403.18x = 59,552,599.88
  5. Step 5: Solve for x
    x = 59,552,599.88/10,403.18
  6. Step 6: Final answer
    x = 5,724.46

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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.