Home / 13,455.45-18,568.49-7,486.98

Finding the Fourth Proportional to 13,455.45, 18,568.49 and 7,486.98

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Solution

The fourth proportional to 13,455.45, 18,568.49 and 7,486.98 is: 10,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.45 : 18,568.49 = 7,486.98 : x
  2. Step 2: Convert to fraction form
    13,455.45/18,568.49 = 7,486.98/x
  3. Step 3: Cross multiply
    13,455.45x = 18,568.49 × 7,486.98
  4. Step 4: Simplify right side
    13,455.45x = 139,021,806.19
  5. Step 5: Solve for x
    x = 139,021,806.19/13,455.45
  6. Step 6: Final answer
    x = 10,332.01

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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.