Home / 9,285.53-13,905.57-8,385.95

Finding the Fourth Proportional to 9,285.53, 13,905.57 and 8,385.95

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Solution

The fourth proportional to 9,285.53, 13,905.57 and 8,385.95 is: 12,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.53 : 13,905.57 = 8,385.95 : x
  2. Step 2: Convert to fraction form
    9,285.53/13,905.57 = 8,385.95/x
  3. Step 3: Cross multiply
    9,285.53x = 13,905.57 × 8,385.95
  4. Step 4: Simplify right side
    9,285.53x = 116,611,313.77
  5. Step 5: Solve for x
    x = 116,611,313.77/9,285.53
  6. Step 6: Final answer
    x = 12,558.40

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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.