Home / 18,581.40-25,638.12-10,622.34

Finding the Fourth Proportional to 18,581.40, 25,638.12 and 10,622.34

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Solution

The fourth proportional to 18,581.40, 25,638.12 and 10,622.34 is: 14,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.40 : 25,638.12 = 10,622.34 : x
  2. Step 2: Convert to fraction form
    18,581.40/25,638.12 = 10,622.34/x
  3. Step 3: Cross multiply
    18,581.40x = 25,638.12 × 10,622.34
  4. Step 4: Simplify right side
    18,581.40x = 272,336,827.60
  5. Step 5: Solve for x
    x = 272,336,827.60/18,581.40
  6. Step 6: Final answer
    x = 14,656.42

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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.