Home / 10,985.10-16,477.65-4,407.90

Finding the Fourth Proportional to 10,985.10, 16,477.65 and 4,407.90

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Solution

The fourth proportional to 10,985.10, 16,477.65 and 4,407.90 is: 6,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.10 : 16,477.65 = 4,407.90 : x
  2. Step 2: Convert to fraction form
    10,985.10/16,477.65 = 4,407.90/x
  3. Step 3: Cross multiply
    10,985.10x = 16,477.65 × 4,407.90
  4. Step 4: Simplify right side
    10,985.10x = 72,631,833.44
  5. Step 5: Solve for x
    x = 72,631,833.44/10,985.10
  6. Step 6: Final answer
    x = 6,611.85

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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.