Home / 13,374.48-18,437.55-9,383.22

Finding the Fourth Proportional to 13,374.48, 18,437.55 and 9,383.22

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Solution

The fourth proportional to 13,374.48, 18,437.55 and 9,383.22 is: 12,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.48 : 18,437.55 = 9,383.22 : x
  2. Step 2: Convert to fraction form
    13,374.48/18,437.55 = 9,383.22/x
  3. Step 3: Cross multiply
    13,374.48x = 18,437.55 × 9,383.22
  4. Step 4: Simplify right side
    13,374.48x = 173,003,587.91
  5. Step 5: Solve for x
    x = 173,003,587.91/13,374.48
  6. Step 6: Final answer
    x = 12,935.35

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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.