Home / 10,479.36-15,719.58-2,688.24

Finding the Fourth Proportional to 10,479.36, 15,719.58 and 2,688.24

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Solution

The fourth proportional to 10,479.36, 15,719.58 and 2,688.24 is: 4,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.36 : 15,719.58 = 2,688.24 : x
  2. Step 2: Convert to fraction form
    10,479.36/15,719.58 = 2,688.24/x
  3. Step 3: Cross multiply
    10,479.36x = 15,719.58 × 2,688.24
  4. Step 4: Simplify right side
    10,479.36x = 42,258,003.74
  5. Step 5: Solve for x
    x = 42,258,003.74/10,479.36
  6. Step 6: Final answer
    x = 4,032.50

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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.