Home / 15,699.95-21,653.39-10,327.91

Finding the Fourth Proportional to 15,699.95, 21,653.39 and 10,327.91

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Solution

The fourth proportional to 15,699.95, 21,653.39 and 10,327.91 is: 14,244.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.95 : 21,653.39 = 10,327.91 : x
  2. Step 2: Convert to fraction form
    15,699.95/21,653.39 = 10,327.91/x
  3. Step 3: Cross multiply
    15,699.95x = 21,653.39 × 10,327.91
  4. Step 4: Simplify right side
    15,699.95x = 223,634,103.21
  5. Step 5: Solve for x
    x = 223,634,103.21/15,699.95
  6. Step 6: Final answer
    x = 14,244.26

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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.