Home / 10,355.01-14,289.93-5,639.31

Finding the Fourth Proportional to 10,355.01, 14,289.93 and 5,639.31

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Solution

The fourth proportional to 10,355.01, 14,289.93 and 5,639.31 is: 7,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.01 : 14,289.93 = 5,639.31 : x
  2. Step 2: Convert to fraction form
    10,355.01/14,289.93 = 5,639.31/x
  3. Step 3: Cross multiply
    10,355.01x = 14,289.93 × 5,639.31
  4. Step 4: Simplify right side
    10,355.01x = 80,585,345.15
  5. Step 5: Solve for x
    x = 80,585,345.15/10,355.01
  6. Step 6: Final answer
    x = 7,782.26

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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.