Home / 10,008.83-15,015.40-2,989.40

Finding the Fourth Proportional to 10,008.83, 15,015.40 and 2,989.40

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Solution

The fourth proportional to 10,008.83, 15,015.40 and 2,989.40 is: 4,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.83 : 15,015.40 = 2,989.40 : x
  2. Step 2: Convert to fraction form
    10,008.83/15,015.40 = 2,989.40/x
  3. Step 3: Cross multiply
    10,008.83x = 15,015.40 × 2,989.40
  4. Step 4: Simplify right side
    10,008.83x = 44,886,954.21
  5. Step 5: Solve for x
    x = 44,886,954.21/10,008.83
  6. Step 6: Final answer
    x = 4,484.73

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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.