Home / 15,702.99-21,652.46-12,109.83

Finding the Fourth Proportional to 15,702.99, 21,652.46 and 12,109.83

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Solution

The fourth proportional to 15,702.99, 21,652.46 and 12,109.83 is: 16,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.99 : 21,652.46 = 12,109.83 : x
  2. Step 2: Convert to fraction form
    15,702.99/21,652.46 = 12,109.83/x
  3. Step 3: Cross multiply
    15,702.99x = 21,652.46 × 12,109.83
  4. Step 4: Simplify right side
    15,702.99x = 262,207,549.13
  5. Step 5: Solve for x
    x = 262,207,549.13/15,702.99
  6. Step 6: Final answer
    x = 16,697.94

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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.