Home / 13,470.04-20,192.10-6,899.32

Finding the Fourth Proportional to 13,470.04, 20,192.10 and 6,899.32

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Solution

The fourth proportional to 13,470.04, 20,192.10 and 6,899.32 is: 10,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.04 : 20,192.10 = 6,899.32 : x
  2. Step 2: Convert to fraction form
    13,470.04/20,192.10 = 6,899.32/x
  3. Step 3: Cross multiply
    13,470.04x = 20,192.10 × 6,899.32
  4. Step 4: Simplify right side
    13,470.04x = 139,311,759.37
  5. Step 5: Solve for x
    x = 139,311,759.37/13,470.04
  6. Step 6: Final answer
    x = 10,342.34

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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.