Home / 11,790.29-16,271.40-6,485.10

Finding the Fourth Proportional to 11,790.29, 16,271.40 and 6,485.10

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Solution

The fourth proportional to 11,790.29, 16,271.40 and 6,485.10 is: 8,949.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.29 : 16,271.40 = 6,485.10 : x
  2. Step 2: Convert to fraction form
    11,790.29/16,271.40 = 6,485.10/x
  3. Step 3: Cross multiply
    11,790.29x = 16,271.40 × 6,485.10
  4. Step 4: Simplify right side
    11,790.29x = 105,521,656.14
  5. Step 5: Solve for x
    x = 105,521,656.14/11,790.29
  6. Step 6: Final answer
    x = 8,949.88

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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.