Home / 11,222.68-15,487.14-6,507.40

Finding the Fourth Proportional to 11,222.68, 15,487.14 and 6,507.40

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Solution

The fourth proportional to 11,222.68, 15,487.14 and 6,507.40 is: 8,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.68 : 15,487.14 = 6,507.40 : x
  2. Step 2: Convert to fraction form
    11,222.68/15,487.14 = 6,507.40/x
  3. Step 3: Cross multiply
    11,222.68x = 15,487.14 × 6,507.40
  4. Step 4: Simplify right side
    11,222.68x = 100,781,014.84
  5. Step 5: Solve for x
    x = 100,781,014.84/11,222.68
  6. Step 6: Final answer
    x = 8,980.12

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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.