Home / 13,442.16-18,555.33-8,964.27

Finding the Fourth Proportional to 13,442.16, 18,555.33 and 8,964.27

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Solution

The fourth proportional to 13,442.16, 18,555.33 and 8,964.27 is: 12,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.16 : 18,555.33 = 8,964.27 : x
  2. Step 2: Convert to fraction form
    13,442.16/18,555.33 = 8,964.27/x
  3. Step 3: Cross multiply
    13,442.16x = 18,555.33 × 8,964.27
  4. Step 4: Simplify right side
    13,442.16x = 166,334,988.06
  5. Step 5: Solve for x
    x = 166,334,988.06/13,442.16
  6. Step 6: Final answer
    x = 12,374.13

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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.