Home / 7,988.65-11,019.59-6,217.45

Finding the Fourth Proportional to 7,988.65, 11,019.59 and 6,217.45

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Solution

The fourth proportional to 7,988.65, 11,019.59 and 6,217.45 is: 8,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.65 : 11,019.59 = 6,217.45 : x
  2. Step 2: Convert to fraction form
    7,988.65/11,019.59 = 6,217.45/x
  3. Step 3: Cross multiply
    7,988.65x = 11,019.59 × 6,217.45
  4. Step 4: Simplify right side
    7,988.65x = 68,513,718.76
  5. Step 5: Solve for x
    x = 68,513,718.76/7,988.65
  6. Step 6: Final answer
    x = 8,576.38

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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.