Home / 12,490.08-17,236.16-6,900.96

Finding the Fourth Proportional to 12,490.08, 17,236.16 and 6,900.96

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Solution

The fourth proportional to 12,490.08, 17,236.16 and 6,900.96 is: 9,523.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.08 : 17,236.16 = 6,900.96 : x
  2. Step 2: Convert to fraction form
    12,490.08/17,236.16 = 6,900.96/x
  3. Step 3: Cross multiply
    12,490.08x = 17,236.16 × 6,900.96
  4. Step 4: Simplify right side
    12,490.08x = 118,946,050.71
  5. Step 5: Solve for x
    x = 118,946,050.71/12,490.08
  6. Step 6: Final answer
    x = 9,523.24

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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.