Home / 18,271.34-25,214.46-12,685.58

Finding the Fourth Proportional to 18,271.34, 25,214.46 and 12,685.58

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Solution

The fourth proportional to 18,271.34, 25,214.46 and 12,685.58 is: 17,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.34 : 25,214.46 = 12,685.58 : x
  2. Step 2: Convert to fraction form
    18,271.34/25,214.46 = 12,685.58/x
  3. Step 3: Cross multiply
    18,271.34x = 25,214.46 × 12,685.58
  4. Step 4: Simplify right side
    18,271.34x = 319,860,049.49
  5. Step 5: Solve for x
    x = 319,860,049.49/18,271.34
  6. Step 6: Final answer
    x = 17,506.11

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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.