Home / 14,205.68-19,585.60-9,721.72

Finding the Fourth Proportional to 14,205.68, 19,585.60 and 9,721.72

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Solution

The fourth proportional to 14,205.68, 19,585.60 and 9,721.72 is: 13,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.68 : 19,585.60 = 9,721.72 : x
  2. Step 2: Convert to fraction form
    14,205.68/19,585.60 = 9,721.72/x
  3. Step 3: Cross multiply
    14,205.68x = 19,585.60 × 9,721.72
  4. Step 4: Simplify right side
    14,205.68x = 190,405,719.41
  5. Step 5: Solve for x
    x = 190,405,719.41/14,205.68
  6. Step 6: Final answer
    x = 13,403.49

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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.