Home / 19,985.37-29,967.03-8,136.10

Finding the Fourth Proportional to 19,985.37, 29,967.03 and 8,136.10

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Solution

The fourth proportional to 19,985.37, 29,967.03 and 8,136.10 is: 12,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.37 : 29,967.03 = 8,136.10 : x
  2. Step 2: Convert to fraction form
    19,985.37/29,967.03 = 8,136.10/x
  3. Step 3: Cross multiply
    19,985.37x = 29,967.03 × 8,136.10
  4. Step 4: Simplify right side
    19,985.37x = 243,814,752.78
  5. Step 5: Solve for x
    x = 243,814,752.78/19,985.37
  6. Step 6: Final answer
    x = 12,199.66

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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.