Home / 14,218.65-19,621.71-7,758.36

Finding the Fourth Proportional to 14,218.65, 19,621.71 and 7,758.36

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Solution

The fourth proportional to 14,218.65, 19,621.71 and 7,758.36 is: 10,706.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.65 : 19,621.71 = 7,758.36 : x
  2. Step 2: Convert to fraction form
    14,218.65/19,621.71 = 7,758.36/x
  3. Step 3: Cross multiply
    14,218.65x = 19,621.71 × 7,758.36
  4. Step 4: Simplify right side
    14,218.65x = 152,232,290.00
  5. Step 5: Solve for x
    x = 152,232,290.00/14,218.65
  6. Step 6: Final answer
    x = 10,706.52

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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.