Home / 15,554.93-21,458.00-9,880.43

Finding the Fourth Proportional to 15,554.93, 21,458.00 and 9,880.43

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Solution

The fourth proportional to 15,554.93, 21,458.00 and 9,880.43 is: 13,630.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.93 : 21,458.00 = 9,880.43 : x
  2. Step 2: Convert to fraction form
    15,554.93/21,458.00 = 9,880.43/x
  3. Step 3: Cross multiply
    15,554.93x = 21,458.00 × 9,880.43
  4. Step 4: Simplify right side
    15,554.93x = 212,014,184.35
  5. Step 5: Solve for x
    x = 212,014,184.35/15,554.93
  6. Step 6: Final answer
    x = 13,630.04

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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.