Home / 6,667.55-9,191.71-5,172.83

Finding the Fourth Proportional to 6,667.55, 9,191.71 and 5,172.83

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Solution

The fourth proportional to 6,667.55, 9,191.71 and 5,172.83 is: 7,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,667.55 : 9,191.71 = 5,172.83 : x
  2. Step 2: Convert to fraction form
    6,667.55/9,191.71 = 5,172.83/x
  3. Step 3: Cross multiply
    6,667.55x = 9,191.71 × 5,172.83
  4. Step 4: Simplify right side
    6,667.55x = 47,547,153.24
  5. Step 5: Solve for x
    x = 47,547,153.24/6,667.55
  6. Step 6: Final answer
    x = 7,131.13

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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.