Home / 10,389.05-15,578.53-4,841.09

Finding the Fourth Proportional to 10,389.05, 15,578.53 and 4,841.09

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Solution

The fourth proportional to 10,389.05, 15,578.53 and 4,841.09 is: 7,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.05 : 15,578.53 = 4,841.09 : x
  2. Step 2: Convert to fraction form
    10,389.05/15,578.53 = 4,841.09/x
  3. Step 3: Cross multiply
    10,389.05x = 15,578.53 × 4,841.09
  4. Step 4: Simplify right side
    10,389.05x = 75,417,065.80
  5. Step 5: Solve for x
    x = 75,417,065.80/10,389.05
  6. Step 6: Final answer
    x = 7,259.28

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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.