Home / 10,005.84-15,009.16-3,765.20

Finding the Fourth Proportional to 10,005.84, 15,009.16 and 3,765.20

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Solution

The fourth proportional to 10,005.84, 15,009.16 and 3,765.20 is: 5,647.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.84 : 15,009.16 = 3,765.20 : x
  2. Step 2: Convert to fraction form
    10,005.84/15,009.16 = 3,765.20/x
  3. Step 3: Cross multiply
    10,005.84x = 15,009.16 × 3,765.20
  4. Step 4: Simplify right side
    10,005.84x = 56,512,489.23
  5. Step 5: Solve for x
    x = 56,512,489.23/10,005.84
  6. Step 6: Final answer
    x = 5,647.95

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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.