Home / 13,274.10-18,261.59-12,905.01

Finding the Fourth Proportional to 13,274.10, 18,261.59 and 12,905.01

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Solution

The fourth proportional to 13,274.10, 18,261.59 and 12,905.01 is: 17,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.10 : 18,261.59 = 12,905.01 : x
  2. Step 2: Convert to fraction form
    13,274.10/18,261.59 = 12,905.01/x
  3. Step 3: Cross multiply
    13,274.10x = 18,261.59 × 12,905.01
  4. Step 4: Simplify right side
    13,274.10x = 235,665,937.04
  5. Step 5: Solve for x
    x = 235,665,937.04/13,274.10
  6. Step 6: Final answer
    x = 17,753.82

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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.