Home / 15,374.96-21,223.40-12,018.86

Finding the Fourth Proportional to 15,374.96, 21,223.40 and 12,018.86

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Solution

The fourth proportional to 15,374.96, 21,223.40 and 12,018.86 is: 16,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.96 : 21,223.40 = 12,018.86 : x
  2. Step 2: Convert to fraction form
    15,374.96/21,223.40 = 12,018.86/x
  3. Step 3: Cross multiply
    15,374.96x = 21,223.40 × 12,018.86
  4. Step 4: Simplify right side
    15,374.96x = 255,080,986.70
  5. Step 5: Solve for x
    x = 255,080,986.70/15,374.96
  6. Step 6: Final answer
    x = 16,590.68

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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.