Home / 14,143.02-19,516.86-7,855.26

Finding the Fourth Proportional to 14,143.02, 19,516.86 and 7,855.26

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Solution

The fourth proportional to 14,143.02, 19,516.86 and 7,855.26 is: 10,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.02 : 19,516.86 = 7,855.26 : x
  2. Step 2: Convert to fraction form
    14,143.02/19,516.86 = 7,855.26/x
  3. Step 3: Cross multiply
    14,143.02x = 19,516.86 × 7,855.26
  4. Step 4: Simplify right side
    14,143.02x = 153,310,009.68
  5. Step 5: Solve for x
    x = 153,310,009.68/14,143.02
  6. Step 6: Final answer
    x = 10,839.98

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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.