Home / 9,285.99-12,812.45-5,252.90

Finding the Fourth Proportional to 9,285.99, 12,812.45 and 5,252.90

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Solution

The fourth proportional to 9,285.99, 12,812.45 and 5,252.90 is: 7,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.99 : 12,812.45 = 5,252.90 : x
  2. Step 2: Convert to fraction form
    9,285.99/12,812.45 = 5,252.90/x
  3. Step 3: Cross multiply
    9,285.99x = 12,812.45 × 5,252.90
  4. Step 4: Simplify right side
    9,285.99x = 67,302,428.28
  5. Step 5: Solve for x
    x = 67,302,428.28/9,285.99
  6. Step 6: Final answer
    x = 7,247.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.