Home / 10,011.60-14,995.80-5,389.20

Finding the Fourth Proportional to 10,011.60, 14,995.80 and 5,389.20

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Solution

The fourth proportional to 10,011.60, 14,995.80 and 5,389.20 is: 8,072.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.60 : 14,995.80 = 5,389.20 : x
  2. Step 2: Convert to fraction form
    10,011.60/14,995.80 = 5,389.20/x
  3. Step 3: Cross multiply
    10,011.60x = 14,995.80 × 5,389.20
  4. Step 4: Simplify right side
    10,011.60x = 80,815,365.36
  5. Step 5: Solve for x
    x = 80,815,365.36/10,011.60
  6. Step 6: Final answer
    x = 8,072.17

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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.