Home / 13,218.42-19,814.88-4,896.18

Finding the Fourth Proportional to 13,218.42, 19,814.88 and 4,896.18

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Solution

The fourth proportional to 13,218.42, 19,814.88 and 4,896.18 is: 7,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.42 : 19,814.88 = 4,896.18 : x
  2. Step 2: Convert to fraction form
    13,218.42/19,814.88 = 4,896.18/x
  3. Step 3: Cross multiply
    13,218.42x = 19,814.88 × 4,896.18
  4. Step 4: Simplify right side
    13,218.42x = 97,017,219.16
  5. Step 5: Solve for x
    x = 97,017,219.16/13,218.42
  6. Step 6: Final answer
    x = 7,339.55

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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.