Home / 13,153.51-18,151.36-7,487.83

Finding the Fourth Proportional to 13,153.51, 18,151.36 and 7,487.83

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Solution

The fourth proportional to 13,153.51, 18,151.36 and 7,487.83 is: 10,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.51 : 18,151.36 = 7,487.83 : x
  2. Step 2: Convert to fraction form
    13,153.51/18,151.36 = 7,487.83/x
  3. Step 3: Cross multiply
    13,153.51x = 18,151.36 × 7,487.83
  4. Step 4: Simplify right side
    13,153.51x = 135,914,297.95
  5. Step 5: Solve for x
    x = 135,914,297.95/13,153.51
  6. Step 6: Final answer
    x = 10,332.93

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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.