Home / 13,455.23-18,568.32-7,486.97

Finding the Fourth Proportional to 13,455.23, 18,568.32 and 7,486.97

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Solution

The fourth proportional to 13,455.23, 18,568.32 and 7,486.97 is: 10,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.23 : 18,568.32 = 7,486.97 : x
  2. Step 2: Convert to fraction form
    13,455.23/18,568.32 = 7,486.97/x
  3. Step 3: Cross multiply
    13,455.23x = 18,568.32 × 7,486.97
  4. Step 4: Simplify right side
    13,455.23x = 139,020,454.79
  5. Step 5: Solve for x
    x = 139,020,454.79/13,455.23
  6. Step 6: Final answer
    x = 10,332.08

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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.