Home / 10,647.30-14,692.59-6,399.06

Finding the Fourth Proportional to 10,647.30, 14,692.59 and 6,399.06

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Solution

The fourth proportional to 10,647.30, 14,692.59 and 6,399.06 is: 8,830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.30 : 14,692.59 = 6,399.06 : x
  2. Step 2: Convert to fraction form
    10,647.30/14,692.59 = 6,399.06/x
  3. Step 3: Cross multiply
    10,647.30x = 14,692.59 × 6,399.06
  4. Step 4: Simplify right side
    10,647.30x = 94,018,764.97
  5. Step 5: Solve for x
    x = 94,018,764.97/10,647.30
  6. Step 6: Final answer
    x = 8,830.29

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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.