Home / 14,328.58-21,461.70-8,765.09

Finding the Fourth Proportional to 14,328.58, 21,461.70 and 8,765.09

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Solution

The fourth proportional to 14,328.58, 21,461.70 and 8,765.09 is: 13,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.58 : 21,461.70 = 8,765.09 : x
  2. Step 2: Convert to fraction form
    14,328.58/21,461.70 = 8,765.09/x
  3. Step 3: Cross multiply
    14,328.58x = 21,461.70 × 8,765.09
  4. Step 4: Simplify right side
    14,328.58x = 188,113,732.05
  5. Step 5: Solve for x
    x = 188,113,732.05/14,328.58
  6. Step 6: Final answer
    x = 13,128.57

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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.