Home / 13,442.04-20,150.10-6,871.32

Finding the Fourth Proportional to 13,442.04, 20,150.10 and 6,871.32

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Solution

The fourth proportional to 13,442.04, 20,150.10 and 6,871.32 is: 10,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.04 : 20,150.10 = 6,871.32 : x
  2. Step 2: Convert to fraction form
    13,442.04/20,150.10 = 6,871.32/x
  3. Step 3: Cross multiply
    13,442.04x = 20,150.10 × 6,871.32
  4. Step 4: Simplify right side
    13,442.04x = 138,457,785.13
  5. Step 5: Solve for x
    x = 138,457,785.13/13,442.04
  6. Step 6: Final answer
    x = 10,300.36

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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.