Home / 15,880.78-23,804.37-5,340.76

Finding the Fourth Proportional to 15,880.78, 23,804.37 and 5,340.76

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Solution

The fourth proportional to 15,880.78, 23,804.37 and 5,340.76 is: 8,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.78 : 23,804.37 = 5,340.76 : x
  2. Step 2: Convert to fraction form
    15,880.78/23,804.37 = 5,340.76/x
  3. Step 3: Cross multiply
    15,880.78x = 23,804.37 × 5,340.76
  4. Step 4: Simplify right side
    15,880.78x = 127,133,427.12
  5. Step 5: Solve for x
    x = 127,133,427.12/15,880.78
  6. Step 6: Final answer
    x = 8,005.49

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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.