Home / 15,298.67-21,111.31-8,583.68

Finding the Fourth Proportional to 15,298.67, 21,111.31 and 8,583.68

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Solution

The fourth proportional to 15,298.67, 21,111.31 and 8,583.68 is: 11,845.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.67 : 21,111.31 = 8,583.68 : x
  2. Step 2: Convert to fraction form
    15,298.67/21,111.31 = 8,583.68/x
  3. Step 3: Cross multiply
    15,298.67x = 21,111.31 × 8,583.68
  4. Step 4: Simplify right side
    15,298.67x = 181,212,729.42
  5. Step 5: Solve for x
    x = 181,212,729.42/15,298.67
  6. Step 6: Final answer
    x = 11,845.00

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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.