Home / 11,289.79-16,931.10-10,552.70

Finding the Fourth Proportional to 11,289.79, 16,931.10 and 10,552.70

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Solution

The fourth proportional to 11,289.79, 16,931.10 and 10,552.70 is: 15,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.79 : 16,931.10 = 10,552.70 : x
  2. Step 2: Convert to fraction form
    11,289.79/16,931.10 = 10,552.70/x
  3. Step 3: Cross multiply
    11,289.79x = 16,931.10 × 10,552.70
  4. Step 4: Simplify right side
    11,289.79x = 178,668,815.15
  5. Step 5: Solve for x
    x = 178,668,815.15/11,289.79
  6. Step 6: Final answer
    x = 15,825.70

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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.