Home / 10,278.45-14,185.83-7,458.63

Finding the Fourth Proportional to 10,278.45, 14,185.83 and 7,458.63

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Solution

The fourth proportional to 10,278.45, 14,185.83 and 7,458.63 is: 10,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.45 : 14,185.83 = 7,458.63 : x
  2. Step 2: Convert to fraction form
    10,278.45/14,185.83 = 7,458.63/x
  3. Step 3: Cross multiply
    10,278.45x = 14,185.83 × 7,458.63
  4. Step 4: Simplify right side
    10,278.45x = 105,806,857.21
  5. Step 5: Solve for x
    x = 105,806,857.21/10,278.45
  6. Step 6: Final answer
    x = 10,294.05

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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.