Home / 13,305.04-19,958.07-4,421.15

Finding the Fourth Proportional to 13,305.04, 19,958.07 and 4,421.15

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Solution

The fourth proportional to 13,305.04, 19,958.07 and 4,421.15 is: 6,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.04 : 19,958.07 = 4,421.15 : x
  2. Step 2: Convert to fraction form
    13,305.04/19,958.07 = 4,421.15/x
  3. Step 3: Cross multiply
    13,305.04x = 19,958.07 × 4,421.15
  4. Step 4: Simplify right side
    13,305.04x = 88,237,521.39
  5. Step 5: Solve for x
    x = 88,237,521.39/13,305.04
  6. Step 6: Final answer
    x = 6,631.89

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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.