Home / 9,985.12-14,977.80-3,410.80

Finding the Fourth Proportional to 9,985.12, 14,977.80 and 3,410.80

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Solution

The fourth proportional to 9,985.12, 14,977.80 and 3,410.80 is: 5,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.12 : 14,977.80 = 3,410.80 : x
  2. Step 2: Convert to fraction form
    9,985.12/14,977.80 = 3,410.80/x
  3. Step 3: Cross multiply
    9,985.12x = 14,977.80 × 3,410.80
  4. Step 4: Simplify right side
    9,985.12x = 51,086,280.24
  5. Step 5: Solve for x
    x = 51,086,280.24/9,985.12
  6. Step 6: Final answer
    x = 5,116.24

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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.