Home / 10,369.20-15,553.80-9,807.60

Finding the Fourth Proportional to 10,369.20, 15,553.80 and 9,807.60

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Solution

The fourth proportional to 10,369.20, 15,553.80 and 9,807.60 is: 14,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.20 : 15,553.80 = 9,807.60 : x
  2. Step 2: Convert to fraction form
    10,369.20/15,553.80 = 9,807.60/x
  3. Step 3: Cross multiply
    10,369.20x = 15,553.80 × 9,807.60
  4. Step 4: Simplify right side
    10,369.20x = 152,545,448.88
  5. Step 5: Solve for x
    x = 152,545,448.88/10,369.20
  6. Step 6: Final answer
    x = 14,711.40

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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.