Home / 15,314.09-21,137.87-9,264.33

Finding the Fourth Proportional to 15,314.09, 21,137.87 and 9,264.33

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Solution

The fourth proportional to 15,314.09, 21,137.87 and 9,264.33 is: 12,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.09 : 21,137.87 = 9,264.33 : x
  2. Step 2: Convert to fraction form
    15,314.09/21,137.87 = 9,264.33/x
  3. Step 3: Cross multiply
    15,314.09x = 21,137.87 × 9,264.33
  4. Step 4: Simplify right side
    15,314.09x = 195,828,226.34
  5. Step 5: Solve for x
    x = 195,828,226.34/15,314.09
  6. Step 6: Final answer
    x = 12,787.46

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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.