Home / 15,447.40-23,181.90-6,688.60

Finding the Fourth Proportional to 15,447.40, 23,181.90 and 6,688.60

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Solution

The fourth proportional to 15,447.40, 23,181.90 and 6,688.60 is: 10,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.40 : 23,181.90 = 6,688.60 : x
  2. Step 2: Convert to fraction form
    15,447.40/23,181.90 = 6,688.60/x
  3. Step 3: Cross multiply
    15,447.40x = 23,181.90 × 6,688.60
  4. Step 4: Simplify right side
    15,447.40x = 155,054,456.34
  5. Step 5: Solve for x
    x = 155,054,456.34/15,447.40
  6. Step 6: Final answer
    x = 10,037.58

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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.