Home / 13,479.14-18,600.80-7,814.00

Finding the Fourth Proportional to 13,479.14, 18,600.80 and 7,814.00

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Solution

The fourth proportional to 13,479.14, 18,600.80 and 7,814.00 is: 10,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.14 : 18,600.80 = 7,814.00 : x
  2. Step 2: Convert to fraction form
    13,479.14/18,600.80 = 7,814.00/x
  3. Step 3: Cross multiply
    13,479.14x = 18,600.80 × 7,814.00
  4. Step 4: Simplify right side
    13,479.14x = 145,346,519.13
  5. Step 5: Solve for x
    x = 145,346,519.13/13,479.14
  6. Step 6: Final answer
    x = 10,783.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.