Home / 13,275.09-18,328.07-8,246.68

Finding the Fourth Proportional to 13,275.09, 18,328.07 and 8,246.68

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Solution

The fourth proportional to 13,275.09, 18,328.07 and 8,246.68 is: 11,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.09 : 18,328.07 = 8,246.68 : x
  2. Step 2: Convert to fraction form
    13,275.09/18,328.07 = 8,246.68/x
  3. Step 3: Cross multiply
    13,275.09x = 18,328.07 × 8,246.68
  4. Step 4: Simplify right side
    13,275.09x = 151,145,703.10
  5. Step 5: Solve for x
    x = 151,145,703.10/13,275.09
  6. Step 6: Final answer
    x = 11,385.66

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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.