Home / 12,316.28-16,996.49-7,011.09

Finding the Fourth Proportional to 12,316.28, 16,996.49 and 7,011.09

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Solution

The fourth proportional to 12,316.28, 16,996.49 and 7,011.09 is: 9,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.28 : 16,996.49 = 7,011.09 : x
  2. Step 2: Convert to fraction form
    12,316.28/16,996.49 = 7,011.09/x
  3. Step 3: Cross multiply
    12,316.28x = 16,996.49 × 7,011.09
  4. Step 4: Simplify right side
    12,316.28x = 119,163,949.76
  5. Step 5: Solve for x
    x = 119,163,949.76/12,316.28
  6. Step 6: Final answer
    x = 9,675.32

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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.