Home / 15,549.93-21,466.44-9,889.02

Finding the Fourth Proportional to 15,549.93, 21,466.44 and 9,889.02

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Solution

The fourth proportional to 15,549.93, 21,466.44 and 9,889.02 is: 13,651.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.93 : 21,466.44 = 9,889.02 : x
  2. Step 2: Convert to fraction form
    15,549.93/21,466.44 = 9,889.02/x
  3. Step 3: Cross multiply
    15,549.93x = 21,466.44 × 9,889.02
  4. Step 4: Simplify right side
    15,549.93x = 212,282,054.49
  5. Step 5: Solve for x
    x = 212,282,054.49/15,549.93
  6. Step 6: Final answer
    x = 13,651.64

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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.