Home / 12,316.80-16,996.50-7,011.66

Finding the Fourth Proportional to 12,316.80, 16,996.50 and 7,011.66

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Solution

The fourth proportional to 12,316.80, 16,996.50 and 7,011.66 is: 9,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.80 : 16,996.50 = 7,011.66 : x
  2. Step 2: Convert to fraction form
    12,316.80/16,996.50 = 7,011.66/x
  3. Step 3: Cross multiply
    12,316.80x = 16,996.50 × 7,011.66
  4. Step 4: Simplify right side
    12,316.80x = 119,173,679.19
  5. Step 5: Solve for x
    x = 119,173,679.19/12,316.80
  6. Step 6: Final answer
    x = 9,675.70

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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.