Home / 6,988.38-10,457.45-5,134.89

Finding the Fourth Proportional to 6,988.38, 10,457.45 and 5,134.89

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Solution

The fourth proportional to 6,988.38, 10,457.45 and 5,134.89 is: 7,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.38 : 10,457.45 = 5,134.89 : x
  2. Step 2: Convert to fraction form
    6,988.38/10,457.45 = 5,134.89/x
  3. Step 3: Cross multiply
    6,988.38x = 10,457.45 × 5,134.89
  4. Step 4: Simplify right side
    6,988.38x = 53,697,829.76
  5. Step 5: Solve for x
    x = 53,697,829.76/6,988.38
  6. Step 6: Final answer
    x = 7,683.87

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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.