Home / 13,881.79-20,818.36-4,645.63

Finding the Fourth Proportional to 13,881.79, 20,818.36 and 4,645.63

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Solution

The fourth proportional to 13,881.79, 20,818.36 and 4,645.63 is: 6,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.79 : 20,818.36 = 4,645.63 : x
  2. Step 2: Convert to fraction form
    13,881.79/20,818.36 = 4,645.63/x
  3. Step 3: Cross multiply
    13,881.79x = 20,818.36 × 4,645.63
  4. Step 4: Simplify right side
    13,881.79x = 96,714,270.45
  5. Step 5: Solve for x
    x = 96,714,270.45/13,881.79
  6. Step 6: Final answer
    x = 6,966.99

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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.