Home / 13,153.73-18,152.51-7,412.11

Finding the Fourth Proportional to 13,153.73, 18,152.51 and 7,412.11

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Solution

The fourth proportional to 13,153.73, 18,152.51 and 7,412.11 is: 10,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.73 : 18,152.51 = 7,412.11 : x
  2. Step 2: Convert to fraction form
    13,153.73/18,152.51 = 7,412.11/x
  3. Step 3: Cross multiply
    13,153.73x = 18,152.51 × 7,412.11
  4. Step 4: Simplify right side
    13,153.73x = 134,548,318.45
  5. Step 5: Solve for x
    x = 134,548,318.45/13,153.73
  6. Step 6: Final answer
    x = 10,228.91

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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.