Home / 10,719.79-16,079.69-4,476.40

Finding the Fourth Proportional to 10,719.79, 16,079.69 and 4,476.40

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Solution

The fourth proportional to 10,719.79, 16,079.69 and 4,476.40 is: 6,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.79 : 16,079.69 = 4,476.40 : x
  2. Step 2: Convert to fraction form
    10,719.79/16,079.69 = 4,476.40/x
  3. Step 3: Cross multiply
    10,719.79x = 16,079.69 × 4,476.40
  4. Step 4: Simplify right side
    10,719.79x = 71,979,135.51
  5. Step 5: Solve for x
    x = 71,979,135.51/10,719.79
  6. Step 6: Final answer
    x = 6,714.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.