Home / 8,586.20-12,875.43-3,653.30

Finding the Fourth Proportional to 8,586.20, 12,875.43 and 3,653.30

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Solution

The fourth proportional to 8,586.20, 12,875.43 and 3,653.30 is: 5,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.20 : 12,875.43 = 3,653.30 : x
  2. Step 2: Convert to fraction form
    8,586.20/12,875.43 = 3,653.30/x
  3. Step 3: Cross multiply
    8,586.20x = 12,875.43 × 3,653.30
  4. Step 4: Simplify right side
    8,586.20x = 47,037,808.42
  5. Step 5: Solve for x
    x = 47,037,808.42/8,586.20
  6. Step 6: Final answer
    x = 5,478.30

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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.