Home / 19,199.02-28,798.55-12,654.43

Finding the Fourth Proportional to 19,199.02, 28,798.55 and 12,654.43

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Solution

The fourth proportional to 19,199.02, 28,798.55 and 12,654.43 is: 18,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.02 : 28,798.55 = 12,654.43 : x
  2. Step 2: Convert to fraction form
    19,199.02/28,798.55 = 12,654.43/x
  3. Step 3: Cross multiply
    19,199.02x = 28,798.55 × 12,654.43
  4. Step 4: Simplify right side
    19,199.02x = 364,429,235.08
  5. Step 5: Solve for x
    x = 364,429,235.08/19,199.02
  6. Step 6: Final answer
    x = 18,981.66

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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.