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Finding the Fourth Proportional to 12,264.50, 16,920.39 and 7,482.77

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Solution

The fourth proportional to 12,264.50, 16,920.39 and 7,482.77 is: 10,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,264.50 : 16,920.39 = 7,482.77 : x
  2. Step 2: Convert to fraction form
    12,264.50/16,920.39 = 7,482.77/x
  3. Step 3: Cross multiply
    12,264.50x = 16,920.39 × 7,482.77
  4. Step 4: Simplify right side
    12,264.50x = 126,611,302.08
  5. Step 5: Solve for x
    x = 126,611,302.08/12,264.50
  6. Step 6: Final answer
    x = 10,323.40

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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.