Home / 15,302.44-21,114.57-8,587.14

Finding the Fourth Proportional to 15,302.44, 21,114.57 and 8,587.14

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Solution

The fourth proportional to 15,302.44, 21,114.57 and 8,587.14 is: 11,848.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.44 : 21,114.57 = 8,587.14 : x
  2. Step 2: Convert to fraction form
    15,302.44/21,114.57 = 8,587.14/x
  3. Step 3: Cross multiply
    15,302.44x = 21,114.57 × 8,587.14
  4. Step 4: Simplify right side
    15,302.44x = 181,313,768.63
  5. Step 5: Solve for x
    x = 181,313,768.63/15,302.44
  6. Step 6: Final answer
    x = 11,848.68

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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.