Home / 12,310.26-16,988.15-7,276.30

Finding the Fourth Proportional to 12,310.26, 16,988.15 and 7,276.30

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Solution

The fourth proportional to 12,310.26, 16,988.15 and 7,276.30 is: 10,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.26 : 16,988.15 = 7,276.30 : x
  2. Step 2: Convert to fraction form
    12,310.26/16,988.15 = 7,276.30/x
  3. Step 3: Cross multiply
    12,310.26x = 16,988.15 × 7,276.30
  4. Step 4: Simplify right side
    12,310.26x = 123,610,810.64
  5. Step 5: Solve for x
    x = 123,610,810.64/12,310.26
  6. Step 6: Final answer
    x = 10,041.28

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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.