Home / 15,558.84-21,475.08-9,270

Finding the Fourth Proportional to 15,558.84, 21,475.08 and 9,270

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Solution

The fourth proportional to 15,558.84, 21,475.08 and 9,270 is: 12,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.84 : 21,475.08 = 9,270 : x
  2. Step 2: Convert to fraction form
    15,558.84/21,475.08 = 9,270/x
  3. Step 3: Cross multiply
    15,558.84x = 21,475.08 × 9,270
  4. Step 4: Simplify right side
    15,558.84x = 199,073,991.60
  5. Step 5: Solve for x
    x = 199,073,991.60/15,558.84
  6. Step 6: Final answer
    x = 12,794.91

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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.