Home / 12,688.46-19,027.99-4,366.18

Finding the Fourth Proportional to 12,688.46, 19,027.99 and 4,366.18

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Solution

The fourth proportional to 12,688.46, 19,027.99 and 4,366.18 is: 6,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.46 : 19,027.99 = 4,366.18 : x
  2. Step 2: Convert to fraction form
    12,688.46/19,027.99 = 4,366.18/x
  3. Step 3: Cross multiply
    12,688.46x = 19,027.99 × 4,366.18
  4. Step 4: Simplify right side
    12,688.46x = 83,079,629.38
  5. Step 5: Solve for x
    x = 83,079,629.38/12,688.46
  6. Step 6: Final answer
    x = 6,547.65

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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.