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Finding the Fourth Proportional to 12,011.63, 17,985.98 and 8,482.55

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Solution

The fourth proportional to 12,011.63, 17,985.98 and 8,482.55 is: 12,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.63 : 17,985.98 = 8,482.55 : x
  2. Step 2: Convert to fraction form
    12,011.63/17,985.98 = 8,482.55/x
  3. Step 3: Cross multiply
    12,011.63x = 17,985.98 × 8,482.55
  4. Step 4: Simplify right side
    12,011.63x = 152,566,905.93
  5. Step 5: Solve for x
    x = 152,566,905.93/12,011.63
  6. Step 6: Final answer
    x = 12,701.60

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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.