Home / 8,718.40-13,070.24-3,784.32

Finding the Fourth Proportional to 8,718.40, 13,070.24 and 3,784.32

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Solution

The fourth proportional to 8,718.40, 13,070.24 and 3,784.32 is: 5,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.40 : 13,070.24 = 3,784.32 : x
  2. Step 2: Convert to fraction form
    8,718.40/13,070.24 = 3,784.32/x
  3. Step 3: Cross multiply
    8,718.40x = 13,070.24 × 3,784.32
  4. Step 4: Simplify right side
    8,718.40x = 49,461,970.64
  5. Step 5: Solve for x
    x = 49,461,970.64/8,718.40
  6. Step 6: Final answer
    x = 5,673.29

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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.