Home / 12,045.80-16,623.14-6,740.70

Finding the Fourth Proportional to 12,045.80, 16,623.14 and 6,740.70

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Solution

The fourth proportional to 12,045.80, 16,623.14 and 6,740.70 is: 9,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.80 : 16,623.14 = 6,740.70 : x
  2. Step 2: Convert to fraction form
    12,045.80/16,623.14 = 6,740.70/x
  3. Step 3: Cross multiply
    12,045.80x = 16,623.14 × 6,740.70
  4. Step 4: Simplify right side
    12,045.80x = 112,051,599.80
  5. Step 5: Solve for x
    x = 112,051,599.80/12,045.80
  6. Step 6: Final answer
    x = 9,302.13

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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.