Home / 10,315.35-15,460.04-5,625.60

Finding the Fourth Proportional to 10,315.35, 15,460.04 and 5,625.60

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Solution

The fourth proportional to 10,315.35, 15,460.04 and 5,625.60 is: 8,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.35 : 15,460.04 = 5,625.60 : x
  2. Step 2: Convert to fraction form
    10,315.35/15,460.04 = 5,625.60/x
  3. Step 3: Cross multiply
    10,315.35x = 15,460.04 × 5,625.60
  4. Step 4: Simplify right side
    10,315.35x = 86,972,001.02
  5. Step 5: Solve for x
    x = 86,972,001.02/10,315.35
  6. Step 6: Final answer
    x = 8,431.32

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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.