Home / 7,117.16-10,667.10-3,216.20

Finding the Fourth Proportional to 7,117.16, 10,667.10 and 3,216.20

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Solution

The fourth proportional to 7,117.16, 10,667.10 and 3,216.20 is: 4,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.16 : 10,667.10 = 3,216.20 : x
  2. Step 2: Convert to fraction form
    7,117.16/10,667.10 = 3,216.20/x
  3. Step 3: Cross multiply
    7,117.16x = 10,667.10 × 3,216.20
  4. Step 4: Simplify right side
    7,117.16x = 34,307,527.02
  5. Step 5: Solve for x
    x = 34,307,527.02/7,117.16
  6. Step 6: Final answer
    x = 4,820.40

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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.