Home / 14,144.76-21,210.96-7,120.32

Finding the Fourth Proportional to 14,144.76, 21,210.96 and 7,120.32

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Solution

The fourth proportional to 14,144.76, 21,210.96 and 7,120.32 is: 10,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.76 : 21,210.96 = 7,120.32 : x
  2. Step 2: Convert to fraction form
    14,144.76/21,210.96 = 7,120.32/x
  3. Step 3: Cross multiply
    14,144.76x = 21,210.96 × 7,120.32
  4. Step 4: Simplify right side
    14,144.76x = 151,028,822.71
  5. Step 5: Solve for x
    x = 151,028,822.71/14,144.76
  6. Step 6: Final answer
    x = 10,677.37

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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.