Home / 9,290.56-12,820.11-5,513.07

Finding the Fourth Proportional to 9,290.56, 12,820.11 and 5,513.07

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Solution

The fourth proportional to 9,290.56, 12,820.11 and 5,513.07 is: 7,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.56 : 12,820.11 = 5,513.07 : x
  2. Step 2: Convert to fraction form
    9,290.56/12,820.11 = 5,513.07/x
  3. Step 3: Cross multiply
    9,290.56x = 12,820.11 × 5,513.07
  4. Step 4: Simplify right side
    9,290.56x = 70,678,163.84
  5. Step 5: Solve for x
    x = 70,678,163.84/9,290.56
  6. Step 6: Final answer
    x = 7,607.53

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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.