Home / 13,017.60-17,946.24-8,818.56

Finding the Fourth Proportional to 13,017.60, 17,946.24 and 8,818.56

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Solution

The fourth proportional to 13,017.60, 17,946.24 and 8,818.56 is: 12,157.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.60 : 17,946.24 = 8,818.56 : x
  2. Step 2: Convert to fraction form
    13,017.60/17,946.24 = 8,818.56/x
  3. Step 3: Cross multiply
    13,017.60x = 17,946.24 × 8,818.56
  4. Step 4: Simplify right side
    13,017.60x = 158,259,994.21
  5. Step 5: Solve for x
    x = 158,259,994.21/13,017.60
  6. Step 6: Final answer
    x = 12,157.39

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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.