Home / 9,999.05-13,798.60-5,692.16

Finding the Fourth Proportional to 9,999.05, 13,798.60 and 5,692.16

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Solution

The fourth proportional to 9,999.05, 13,798.60 and 5,692.16 is: 7,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.05 : 13,798.60 = 5,692.16 : x
  2. Step 2: Convert to fraction form
    9,999.05/13,798.60 = 5,692.16/x
  3. Step 3: Cross multiply
    9,999.05x = 13,798.60 × 5,692.16
  4. Step 4: Simplify right side
    9,999.05x = 78,543,859.24
  5. Step 5: Solve for x
    x = 78,543,859.24/9,999.05
  6. Step 6: Final answer
    x = 7,855.14

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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.