Home / 14,700.08-20,285.90-7,985.80

Finding the Fourth Proportional to 14,700.08, 20,285.90 and 7,985.80

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Solution

The fourth proportional to 14,700.08, 20,285.90 and 7,985.80 is: 11,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.08 : 20,285.90 = 7,985.80 : x
  2. Step 2: Convert to fraction form
    14,700.08/20,285.90 = 7,985.80/x
  3. Step 3: Cross multiply
    14,700.08x = 20,285.90 × 7,985.80
  4. Step 4: Simplify right side
    14,700.08x = 161,998,998.86
  5. Step 5: Solve for x
    x = 161,998,998.86/14,700.08
  6. Step 6: Final answer
    x = 11,020.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.