Home / 14,421.39-21,613.23-7,395.45

Finding the Fourth Proportional to 14,421.39, 21,613.23 and 7,395.45

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Solution

The fourth proportional to 14,421.39, 21,613.23 and 7,395.45 is: 11,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.39 : 21,613.23 = 7,395.45 : x
  2. Step 2: Convert to fraction form
    14,421.39/21,613.23 = 7,395.45/x
  3. Step 3: Cross multiply
    14,421.39x = 21,613.23 × 7,395.45
  4. Step 4: Simplify right side
    14,421.39x = 159,839,561.80
  5. Step 5: Solve for x
    x = 159,839,561.80/14,421.39
  6. Step 6: Final answer
    x = 11,083.51

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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.