Home / 9,985.60-14,983.80-4,439.80

Finding the Fourth Proportional to 9,985.60, 14,983.80 and 4,439.80

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Solution

The fourth proportional to 9,985.60, 14,983.80 and 4,439.80 is: 6,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.60 : 14,983.80 = 4,439.80 : x
  2. Step 2: Convert to fraction form
    9,985.60/14,983.80 = 4,439.80/x
  3. Step 3: Cross multiply
    9,985.60x = 14,983.80 × 4,439.80
  4. Step 4: Simplify right side
    9,985.60x = 66,525,075.24
  5. Step 5: Solve for x
    x = 66,525,075.24/9,985.60
  6. Step 6: Final answer
    x = 6,662.10

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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.