Home / 10,340.37-14,278.01-7,191.09

Finding the Fourth Proportional to 10,340.37, 14,278.01 and 7,191.09

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Solution

The fourth proportional to 10,340.37, 14,278.01 and 7,191.09 is: 9,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.37 : 14,278.01 = 7,191.09 : x
  2. Step 2: Convert to fraction form
    10,340.37/14,278.01 = 7,191.09/x
  3. Step 3: Cross multiply
    10,340.37x = 14,278.01 × 7,191.09
  4. Step 4: Simplify right side
    10,340.37x = 102,674,418.98
  5. Step 5: Solve for x
    x = 102,674,418.98/10,340.37
  6. Step 6: Final answer
    x = 9,929.47

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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.