Home / 14,340.48-21,471.84-7,400.32

Finding the Fourth Proportional to 14,340.48, 21,471.84 and 7,400.32

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Solution

The fourth proportional to 14,340.48, 21,471.84 and 7,400.32 is: 11,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.48 : 21,471.84 = 7,400.32 : x
  2. Step 2: Convert to fraction form
    14,340.48/21,471.84 = 7,400.32/x
  3. Step 3: Cross multiply
    14,340.48x = 21,471.84 × 7,400.32
  4. Step 4: Simplify right side
    14,340.48x = 158,898,486.99
  5. Step 5: Solve for x
    x = 158,898,486.99/14,340.48
  6. Step 6: Final answer
    x = 11,080.42

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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.