Home / 10,905.20-16,314.60-9,460.40

Finding the Fourth Proportional to 10,905.20, 16,314.60 and 9,460.40

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Solution

The fourth proportional to 10,905.20, 16,314.60 and 9,460.40 is: 14,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.20 : 16,314.60 = 9,460.40 : x
  2. Step 2: Convert to fraction form
    10,905.20/16,314.60 = 9,460.40/x
  3. Step 3: Cross multiply
    10,905.20x = 16,314.60 × 9,460.40
  4. Step 4: Simplify right side
    10,905.20x = 154,342,641.84
  5. Step 5: Solve for x
    x = 154,342,641.84/10,905.20
  6. Step 6: Final answer
    x = 14,153.12

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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.