Home / 12,790.19-19,185.29-6,210.74

Finding the Fourth Proportional to 12,790.19, 19,185.29 and 6,210.74

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Solution

The fourth proportional to 12,790.19, 19,185.29 and 6,210.74 is: 9,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.19 : 19,185.29 = 6,210.74 : x
  2. Step 2: Convert to fraction form
    12,790.19/19,185.29 = 6,210.74/x
  3. Step 3: Cross multiply
    12,790.19x = 19,185.29 × 6,210.74
  4. Step 4: Simplify right side
    12,790.19x = 119,154,794.18
  5. Step 5: Solve for x
    x = 119,154,794.18/12,790.19
  6. Step 6: Final answer
    x = 9,316.11

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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.