Home / 14,245.55-19,647.65-13,290.63

Finding the Fourth Proportional to 14,245.55, 19,647.65 and 13,290.63

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Solution

The fourth proportional to 14,245.55, 19,647.65 and 13,290.63 is: 18,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.55 : 19,647.65 = 13,290.63 : x
  2. Step 2: Convert to fraction form
    14,245.55/19,647.65 = 13,290.63/x
  3. Step 3: Cross multiply
    14,245.55x = 19,647.65 × 13,290.63
  4. Step 4: Simplify right side
    14,245.55x = 261,129,646.52
  5. Step 5: Solve for x
    x = 261,129,646.52/14,245.55
  6. Step 6: Final answer
    x = 18,330.61

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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.