Home / 14,242.45-19,652.90-7,868.66

Finding the Fourth Proportional to 14,242.45, 19,652.90 and 7,868.66

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Solution

The fourth proportional to 14,242.45, 19,652.90 and 7,868.66 is: 10,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.45 : 19,652.90 = 7,868.66 : x
  2. Step 2: Convert to fraction form
    14,242.45/19,652.90 = 7,868.66/x
  3. Step 3: Cross multiply
    14,242.45x = 19,652.90 × 7,868.66
  4. Step 4: Simplify right side
    14,242.45x = 154,642,037.81
  5. Step 5: Solve for x
    x = 154,642,037.81/14,242.45
  6. Step 6: Final answer
    x = 10,857.83

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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.