Home / 13,152.84-18,154.98-9,175.32

Finding the Fourth Proportional to 13,152.84, 18,154.98 and 9,175.32

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Solution

The fourth proportional to 13,152.84, 18,154.98 and 9,175.32 is: 12,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.84 : 18,154.98 = 9,175.32 : x
  2. Step 2: Convert to fraction form
    13,152.84/18,154.98 = 9,175.32/x
  3. Step 3: Cross multiply
    13,152.84x = 18,154.98 × 9,175.32
  4. Step 4: Simplify right side
    13,152.84x = 166,577,751.09
  5. Step 5: Solve for x
    x = 166,577,751.09/13,152.84
  6. Step 6: Final answer
    x = 12,664.77

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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.