Home / 14,017.53-21,000.76-8,156.37

Finding the Fourth Proportional to 14,017.53, 21,000.76 and 8,156.37

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Solution

The fourth proportional to 14,017.53, 21,000.76 and 8,156.37 is: 12,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.53 : 21,000.76 = 8,156.37 : x
  2. Step 2: Convert to fraction form
    14,017.53/21,000.76 = 8,156.37/x
  3. Step 3: Cross multiply
    14,017.53x = 21,000.76 × 8,156.37
  4. Step 4: Simplify right side
    14,017.53x = 171,289,968.84
  5. Step 5: Solve for x
    x = 171,289,968.84/14,017.53
  6. Step 6: Final answer
    x = 12,219.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.