Home / 8,070.68-12,107.40-3,688.56

Finding the Fourth Proportional to 8,070.68, 12,107.40 and 3,688.56

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Solution

The fourth proportional to 8,070.68, 12,107.40 and 3,688.56 is: 5,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.68 : 12,107.40 = 3,688.56 : x
  2. Step 2: Convert to fraction form
    8,070.68/12,107.40 = 3,688.56/x
  3. Step 3: Cross multiply
    8,070.68x = 12,107.40 × 3,688.56
  4. Step 4: Simplify right side
    8,070.68x = 44,658,871.34
  5. Step 5: Solve for x
    x = 44,658,871.34/8,070.68
  6. Step 6: Final answer
    x = 5,533.47

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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.