Home / 13,823.64-19,080.96-9,344.40

Finding the Fourth Proportional to 13,823.64, 19,080.96 and 9,344.40

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Solution

The fourth proportional to 13,823.64, 19,080.96 and 9,344.40 is: 12,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.64 : 19,080.96 = 9,344.40 : x
  2. Step 2: Convert to fraction form
    13,823.64/19,080.96 = 9,344.40/x
  3. Step 3: Cross multiply
    13,823.64x = 19,080.96 × 9,344.40
  4. Step 4: Simplify right side
    13,823.64x = 178,300,122.62
  5. Step 5: Solve for x
    x = 178,300,122.62/13,823.64
  6. Step 6: Final answer
    x = 12,898.20

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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.