Home / 10,289.48-15,429.65-5,608.08

Finding the Fourth Proportional to 10,289.48, 15,429.65 and 5,608.08

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Solution

The fourth proportional to 10,289.48, 15,429.65 and 5,608.08 is: 8,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.48 : 15,429.65 = 5,608.08 : x
  2. Step 2: Convert to fraction form
    10,289.48/15,429.65 = 5,608.08/x
  3. Step 3: Cross multiply
    10,289.48x = 15,429.65 × 5,608.08
  4. Step 4: Simplify right side
    10,289.48x = 86,530,683.53
  5. Step 5: Solve for x
    x = 86,530,683.53/10,289.48
  6. Step 6: Final answer
    x = 8,409.63

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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.