Home / 11,520.14-17,280.18-4,599.50

Finding the Fourth Proportional to 11,520.14, 17,280.18 and 4,599.50

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Solution

The fourth proportional to 11,520.14, 17,280.18 and 4,599.50 is: 6,899.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.14 : 17,280.18 = 4,599.50 : x
  2. Step 2: Convert to fraction form
    11,520.14/17,280.18 = 4,599.50/x
  3. Step 3: Cross multiply
    11,520.14x = 17,280.18 × 4,599.50
  4. Step 4: Simplify right side
    11,520.14x = 79,480,187.91
  5. Step 5: Solve for x
    x = 79,480,187.91/11,520.14
  6. Step 6: Final answer
    x = 6,899.24

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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.