Home / 7,118.65-10,665.66-5,537.86

Finding the Fourth Proportional to 7,118.65, 10,665.66 and 5,537.86

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Solution

The fourth proportional to 7,118.65, 10,665.66 and 5,537.86 is: 8,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.65 : 10,665.66 = 5,537.86 : x
  2. Step 2: Convert to fraction form
    7,118.65/10,665.66 = 5,537.86/x
  3. Step 3: Cross multiply
    7,118.65x = 10,665.66 × 5,537.86
  4. Step 4: Simplify right side
    7,118.65x = 59,064,931.89
  5. Step 5: Solve for x
    x = 59,064,931.89/7,118.65
  6. Step 6: Final answer
    x = 8,297.21

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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.