Home / 15,298.84-21,111.45-8,583.22

Finding the Fourth Proportional to 15,298.84, 21,111.45 and 8,583.22

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Solution

The fourth proportional to 15,298.84, 21,111.45 and 8,583.22 is: 11,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.84 : 21,111.45 = 8,583.22 : x
  2. Step 2: Convert to fraction form
    15,298.84/21,111.45 = 8,583.22/x
  3. Step 3: Cross multiply
    15,298.84x = 21,111.45 × 8,583.22
  4. Step 4: Simplify right side
    15,298.84x = 181,204,219.87
  5. Step 5: Solve for x
    x = 181,204,219.87/15,298.84
  6. Step 6: Final answer
    x = 11,844.31

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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.