Home / 10,138.89-15,210.72-4,592.21

Finding the Fourth Proportional to 10,138.89, 15,210.72 and 4,592.21

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Solution

The fourth proportional to 10,138.89, 15,210.72 and 4,592.21 is: 6,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.89 : 15,210.72 = 4,592.21 : x
  2. Step 2: Convert to fraction form
    10,138.89/15,210.72 = 4,592.21/x
  3. Step 3: Cross multiply
    10,138.89x = 15,210.72 × 4,592.21
  4. Step 4: Simplify right side
    10,138.89x = 69,850,858.52
  5. Step 5: Solve for x
    x = 69,850,858.52/10,138.89
  6. Step 6: Final answer
    x = 6,889.40

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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.