Home / 10,285.35-15,427.62-7,156.32

Finding the Fourth Proportional to 10,285.35, 15,427.62 and 7,156.32

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Solution

The fourth proportional to 10,285.35, 15,427.62 and 7,156.32 is: 10,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.35 : 15,427.62 = 7,156.32 : x
  2. Step 2: Convert to fraction form
    10,285.35/15,427.62 = 7,156.32/x
  3. Step 3: Cross multiply
    10,285.35x = 15,427.62 × 7,156.32
  4. Step 4: Simplify right side
    10,285.35x = 110,404,985.56
  5. Step 5: Solve for x
    x = 110,404,985.56/10,285.35
  6. Step 6: Final answer
    x = 10,734.20

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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.