Home / 13,084.84-18,058.83-7,421.64

Finding the Fourth Proportional to 13,084.84, 18,058.83 and 7,421.64

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Solution

The fourth proportional to 13,084.84, 18,058.83 and 7,421.64 is: 10,242.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.84 : 18,058.83 = 7,421.64 : x
  2. Step 2: Convert to fraction form
    13,084.84/18,058.83 = 7,421.64/x
  3. Step 3: Cross multiply
    13,084.84x = 18,058.83 × 7,421.64
  4. Step 4: Simplify right side
    13,084.84x = 134,026,182.86
  5. Step 5: Solve for x
    x = 134,026,182.86/13,084.84
  6. Step 6: Final answer
    x = 10,242.86

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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.