Home / 10,885.10-16,364.10-9,281.30

Finding the Fourth Proportional to 10,885.10, 16,364.10 and 9,281.30

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Solution

The fourth proportional to 10,885.10, 16,364.10 and 9,281.30 is: 13,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.10 : 16,364.10 = 9,281.30 : x
  2. Step 2: Convert to fraction form
    10,885.10/16,364.10 = 9,281.30/x
  3. Step 3: Cross multiply
    10,885.10x = 16,364.10 × 9,281.30
  4. Step 4: Simplify right side
    10,885.10x = 151,880,121.33
  5. Step 5: Solve for x
    x = 151,880,121.33/10,885.10
  6. Step 6: Final answer
    x = 13,953.03

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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.