Home / 15,261.28-21,053.52-9,954.16

Finding the Fourth Proportional to 15,261.28, 21,053.52 and 9,954.16

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Solution

The fourth proportional to 15,261.28, 21,053.52 and 9,954.16 is: 13,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.28 : 21,053.52 = 9,954.16 : x
  2. Step 2: Convert to fraction form
    15,261.28/21,053.52 = 9,954.16/x
  3. Step 3: Cross multiply
    15,261.28x = 21,053.52 × 9,954.16
  4. Step 4: Simplify right side
    15,261.28x = 209,570,106.64
  5. Step 5: Solve for x
    x = 209,570,106.64/15,261.28
  6. Step 6: Final answer
    x = 13,732.14

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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.