Home / 8,688.96-12,000.48-5,889.60

Finding the Fourth Proportional to 8,688.96, 12,000.48 and 5,889.60

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Solution

The fourth proportional to 8,688.96, 12,000.48 and 5,889.60 is: 8,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.96 : 12,000.48 = 5,889.60 : x
  2. Step 2: Convert to fraction form
    8,688.96/12,000.48 = 5,889.60/x
  3. Step 3: Cross multiply
    8,688.96x = 12,000.48 × 5,889.60
  4. Step 4: Simplify right side
    8,688.96x = 70,678,027.01
  5. Step 5: Solve for x
    x = 70,678,027.01/8,688.96
  6. Step 6: Final answer
    x = 8,134.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.