Home / 9,407.55-12,984.75-5,431.05

Finding the Fourth Proportional to 9,407.55, 12,984.75 and 5,431.05

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Solution

The fourth proportional to 9,407.55, 12,984.75 and 5,431.05 is: 7,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,407.55 : 12,984.75 = 5,431.05 : x
  2. Step 2: Convert to fraction form
    9,407.55/12,984.75 = 5,431.05/x
  3. Step 3: Cross multiply
    9,407.55x = 12,984.75 × 5,431.05
  4. Step 4: Simplify right side
    9,407.55x = 70,520,826.49
  5. Step 5: Solve for x
    x = 70,520,826.49/9,407.55
  6. Step 6: Final answer
    x = 7,496.19

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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.