Home / 14,191.03-19,582.86-7,903

Finding the Fourth Proportional to 14,191.03, 19,582.86 and 7,903

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Solution

The fourth proportional to 14,191.03, 19,582.86 and 7,903 is: 10,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.03 : 19,582.86 = 7,903 : x
  2. Step 2: Convert to fraction form
    14,191.03/19,582.86 = 7,903/x
  3. Step 3: Cross multiply
    14,191.03x = 19,582.86 × 7,903
  4. Step 4: Simplify right side
    14,191.03x = 154,763,342.58
  5. Step 5: Solve for x
    x = 154,763,342.58/14,191.03
  6. Step 6: Final answer
    x = 10,905.72

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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.