Home / 10,445.78-14,415.69-6,665.91

Finding the Fourth Proportional to 10,445.78, 14,415.69 and 6,665.91

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Solution

The fourth proportional to 10,445.78, 14,415.69 and 6,665.91 is: 9,199.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.78 : 14,415.69 = 6,665.91 : x
  2. Step 2: Convert to fraction form
    10,445.78/14,415.69 = 6,665.91/x
  3. Step 3: Cross multiply
    10,445.78x = 14,415.69 × 6,665.91
  4. Step 4: Simplify right side
    10,445.78x = 96,093,692.13
  5. Step 5: Solve for x
    x = 96,093,692.13/10,445.78
  6. Step 6: Final answer
    x = 9,199.29

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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.