Home / 13,176.32-18,184.36-7,512.84

Finding the Fourth Proportional to 13,176.32, 18,184.36 and 7,512.84

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Solution

The fourth proportional to 13,176.32, 18,184.36 and 7,512.84 is: 10,368.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.32 : 18,184.36 = 7,512.84 : x
  2. Step 2: Convert to fraction form
    13,176.32/18,184.36 = 7,512.84/x
  3. Step 3: Cross multiply
    13,176.32x = 18,184.36 × 7,512.84
  4. Step 4: Simplify right side
    13,176.32x = 136,616,187.18
  5. Step 5: Solve for x
    x = 136,616,187.18/13,176.32
  6. Step 6: Final answer
    x = 10,368.31

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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.