Home / 13,295.15-18,348.12-7,326.81

Finding the Fourth Proportional to 13,295.15, 18,348.12 and 7,326.81

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Solution

The fourth proportional to 13,295.15, 18,348.12 and 7,326.81 is: 10,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.15 : 18,348.12 = 7,326.81 : x
  2. Step 2: Convert to fraction form
    13,295.15/18,348.12 = 7,326.81/x
  3. Step 3: Cross multiply
    13,295.15x = 18,348.12 × 7,326.81
  4. Step 4: Simplify right side
    13,295.15x = 134,433,189.10
  5. Step 5: Solve for x
    x = 134,433,189.10/13,295.15
  6. Step 6: Final answer
    x = 10,111.45

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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.