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Finding the Fourth Proportional to 15,555.70, 23,357.85 and 8,994.70

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Solution

The fourth proportional to 15,555.70, 23,357.85 and 8,994.70 is: 13,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.70 : 23,357.85 = 8,994.70 : x
  2. Step 2: Convert to fraction form
    15,555.70/23,357.85 = 8,994.70/x
  3. Step 3: Cross multiply
    15,555.70x = 23,357.85 × 8,994.70
  4. Step 4: Simplify right side
    15,555.70x = 210,096,853.40
  5. Step 5: Solve for x
    x = 210,096,853.40/15,555.70
  6. Step 6: Final answer
    x = 13,506.10

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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.