Home / 14,205.09-21,307.05-5,439.48

Finding the Fourth Proportional to 14,205.09, 21,307.05 and 5,439.48

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Solution

The fourth proportional to 14,205.09, 21,307.05 and 5,439.48 is: 8,159.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.09 : 21,307.05 = 5,439.48 : x
  2. Step 2: Convert to fraction form
    14,205.09/21,307.05 = 5,439.48/x
  3. Step 3: Cross multiply
    14,205.09x = 21,307.05 × 5,439.48
  4. Step 4: Simplify right side
    14,205.09x = 115,899,272.33
  5. Step 5: Solve for x
    x = 115,899,272.33/14,205.09
  6. Step 6: Final answer
    x = 8,159.00

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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.