Home / 14,292.10-19,722.84-7,918.56

Finding the Fourth Proportional to 14,292.10, 19,722.84 and 7,918.56

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Solution

The fourth proportional to 14,292.10, 19,722.84 and 7,918.56 is: 10,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,292.10 : 19,722.84 = 7,918.56 : x
  2. Step 2: Convert to fraction form
    14,292.10/19,722.84 = 7,918.56/x
  3. Step 3: Cross multiply
    14,292.10x = 19,722.84 × 7,918.56
  4. Step 4: Simplify right side
    14,292.10x = 156,176,491.91
  5. Step 5: Solve for x
    x = 156,176,491.91/14,292.10
  6. Step 6: Final answer
    x = 10,927.47

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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.