Home / 15,464.48-21,328.08-12,665.12

Finding the Fourth Proportional to 15,464.48, 21,328.08 and 12,665.12

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Solution

The fourth proportional to 15,464.48, 21,328.08 and 12,665.12 is: 17,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.48 : 21,328.08 = 12,665.12 : x
  2. Step 2: Convert to fraction form
    15,464.48/21,328.08 = 12,665.12/x
  3. Step 3: Cross multiply
    15,464.48x = 21,328.08 × 12,665.12
  4. Step 4: Simplify right side
    15,464.48x = 270,122,692.57
  5. Step 5: Solve for x
    x = 270,122,692.57/15,464.48
  6. Step 6: Final answer
    x = 17,467.30

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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.