Home / 14,002.58-19,321.80-7,715.36

Finding the Fourth Proportional to 14,002.58, 19,321.80 and 7,715.36

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Solution

The fourth proportional to 14,002.58, 19,321.80 and 7,715.36 is: 10,646.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.58 : 19,321.80 = 7,715.36 : x
  2. Step 2: Convert to fraction form
    14,002.58/19,321.80 = 7,715.36/x
  3. Step 3: Cross multiply
    14,002.58x = 19,321.80 × 7,715.36
  4. Step 4: Simplify right side
    14,002.58x = 149,074,642.85
  5. Step 5: Solve for x
    x = 149,074,642.85/14,002.58
  6. Step 6: Final answer
    x = 10,646.23

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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.