Home / 12,216.59-18,347.45-7,316.34

Finding the Fourth Proportional to 12,216.59, 18,347.45 and 7,316.34

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Solution

The fourth proportional to 12,216.59, 18,347.45 and 7,316.34 is: 10,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.59 : 18,347.45 = 7,316.34 : x
  2. Step 2: Convert to fraction form
    12,216.59/18,347.45 = 7,316.34/x
  3. Step 3: Cross multiply
    12,216.59x = 18,347.45 × 7,316.34
  4. Step 4: Simplify right side
    12,216.59x = 134,236,191.67
  5. Step 5: Solve for x
    x = 134,236,191.67/12,216.59
  6. Step 6: Final answer
    x = 10,988.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.