Home / 10,586.32-15,878.36-3,189.12

Finding the Fourth Proportional to 10,586.32, 15,878.36 and 3,189.12

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Solution

The fourth proportional to 10,586.32, 15,878.36 and 3,189.12 is: 4,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,586.32 : 15,878.36 = 3,189.12 : x
  2. Step 2: Convert to fraction form
    10,586.32/15,878.36 = 3,189.12/x
  3. Step 3: Cross multiply
    10,586.32x = 15,878.36 × 3,189.12
  4. Step 4: Simplify right side
    10,586.32x = 50,637,995.44
  5. Step 5: Solve for x
    x = 50,637,995.44/10,586.32
  6. Step 6: Final answer
    x = 4,783.34

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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.