Home / 12,770.95-19,157.80-5,377.07

Finding the Fourth Proportional to 12,770.95, 19,157.80 and 5,377.07

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Solution

The fourth proportional to 12,770.95, 19,157.80 and 5,377.07 is: 8,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.95 : 19,157.80 = 5,377.07 : x
  2. Step 2: Convert to fraction form
    12,770.95/19,157.80 = 5,377.07/x
  3. Step 3: Cross multiply
    12,770.95x = 19,157.80 × 5,377.07
  4. Step 4: Simplify right side
    12,770.95x = 103,012,831.65
  5. Step 5: Solve for x
    x = 103,012,831.65/12,770.95
  6. Step 6: Final answer
    x = 8,066.18

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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.