Home / 14,218.93-21,283.40-8,935.65

Finding the Fourth Proportional to 14,218.93, 21,283.40 and 8,935.65

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Solution

The fourth proportional to 14,218.93, 21,283.40 and 8,935.65 is: 13,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.93 : 21,283.40 = 8,935.65 : x
  2. Step 2: Convert to fraction form
    14,218.93/21,283.40 = 8,935.65/x
  3. Step 3: Cross multiply
    14,218.93x = 21,283.40 × 8,935.65
  4. Step 4: Simplify right side
    14,218.93x = 190,181,013.21
  5. Step 5: Solve for x
    x = 190,181,013.21/14,218.93
  6. Step 6: Final answer
    x = 13,375.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.