Home / 14,187.34-19,583.88-11,154.55

Finding the Fourth Proportional to 14,187.34, 19,583.88 and 11,154.55

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Solution

The fourth proportional to 14,187.34, 19,583.88 and 11,154.55 is: 15,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.34 : 19,583.88 = 11,154.55 : x
  2. Step 2: Convert to fraction form
    14,187.34/19,583.88 = 11,154.55/x
  3. Step 3: Cross multiply
    14,187.34x = 19,583.88 × 11,154.55
  4. Step 4: Simplify right side
    14,187.34x = 218,449,368.65
  5. Step 5: Solve for x
    x = 218,449,368.65/14,187.34
  6. Step 6: Final answer
    x = 15,397.49

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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.