Home / 10,289.72-14,199.92-5,574.11

Finding the Fourth Proportional to 10,289.72, 14,199.92 and 5,574.11

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Solution

The fourth proportional to 10,289.72, 14,199.92 and 5,574.11 is: 7,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.72 : 14,199.92 = 5,574.11 : x
  2. Step 2: Convert to fraction form
    10,289.72/14,199.92 = 5,574.11/x
  3. Step 3: Cross multiply
    10,289.72x = 14,199.92 × 5,574.11
  4. Step 4: Simplify right side
    10,289.72x = 79,151,817.20
  5. Step 5: Solve for x
    x = 79,151,817.20/10,289.72
  6. Step 6: Final answer
    x = 7,692.32

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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.