Home / 11,329.05-16,989.53-4,307.20

Finding the Fourth Proportional to 11,329.05, 16,989.53 and 4,307.20

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Solution

The fourth proportional to 11,329.05, 16,989.53 and 4,307.20 is: 6,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.05 : 16,989.53 = 4,307.20 : x
  2. Step 2: Convert to fraction form
    11,329.05/16,989.53 = 4,307.20/x
  3. Step 3: Cross multiply
    11,329.05x = 16,989.53 × 4,307.20
  4. Step 4: Simplify right side
    11,329.05x = 73,177,271.91
  5. Step 5: Solve for x
    x = 73,177,271.91/11,329.05
  6. Step 6: Final answer
    x = 6,459.26

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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.