Home / 9,276.99-12,800.87-5,641.18

Finding the Fourth Proportional to 9,276.99, 12,800.87 and 5,641.18

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Solution

The fourth proportional to 9,276.99, 12,800.87 and 5,641.18 is: 7,783.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,276.99 : 12,800.87 = 5,641.18 : x
  2. Step 2: Convert to fraction form
    9,276.99/12,800.87 = 5,641.18/x
  3. Step 3: Cross multiply
    9,276.99x = 12,800.87 × 5,641.18
  4. Step 4: Simplify right side
    9,276.99x = 72,212,004.50
  5. Step 5: Solve for x
    x = 72,212,004.50/9,276.99
  6. Step 6: Final answer
    x = 7,783.99

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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.