Home / 11,280.30-16,918.47-4,260.93

Finding the Fourth Proportional to 11,280.30, 16,918.47 and 4,260.93

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Solution

The fourth proportional to 11,280.30, 16,918.47 and 4,260.93 is: 6,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.30 : 16,918.47 = 4,260.93 : x
  2. Step 2: Convert to fraction form
    11,280.30/16,918.47 = 4,260.93/x
  3. Step 3: Cross multiply
    11,280.30x = 16,918.47 × 4,260.93
  4. Step 4: Simplify right side
    11,280.30x = 72,088,416.38
  5. Step 5: Solve for x
    x = 72,088,416.38/11,280.30
  6. Step 6: Final answer
    x = 6,390.65

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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.