Home / 14,218.04-19,620.36-7,930.28

Finding the Fourth Proportional to 14,218.04, 19,620.36 and 7,930.28

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Solution

The fourth proportional to 14,218.04, 19,620.36 and 7,930.28 is: 10,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.04 : 19,620.36 = 7,930.28 : x
  2. Step 2: Convert to fraction form
    14,218.04/19,620.36 = 7,930.28/x
  3. Step 3: Cross multiply
    14,218.04x = 19,620.36 × 7,930.28
  4. Step 4: Simplify right side
    14,218.04x = 155,594,948.50
  5. Step 5: Solve for x
    x = 155,594,948.50/14,218.04
  6. Step 6: Final answer
    x = 10,943.49

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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.