Home / 12,516.90-17,276.94-8,271.06

Finding the Fourth Proportional to 12,516.90, 17,276.94 and 8,271.06

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Solution

The fourth proportional to 12,516.90, 17,276.94 and 8,271.06 is: 11,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.90 : 17,276.94 = 8,271.06 : x
  2. Step 2: Convert to fraction form
    12,516.90/17,276.94 = 8,271.06/x
  3. Step 3: Cross multiply
    12,516.90x = 17,276.94 × 8,271.06
  4. Step 4: Simplify right side
    12,516.90x = 142,898,607.36
  5. Step 5: Solve for x
    x = 142,898,607.36/12,516.90
  6. Step 6: Final answer
    x = 11,416.45

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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.