Home / 10,395.78-15,578.71-4,470.99

Finding the Fourth Proportional to 10,395.78, 15,578.71 and 4,470.99

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Solution

The fourth proportional to 10,395.78, 15,578.71 and 4,470.99 is: 6,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,395.78 : 15,578.71 = 4,470.99 : x
  2. Step 2: Convert to fraction form
    10,395.78/15,578.71 = 4,470.99/x
  3. Step 3: Cross multiply
    10,395.78x = 15,578.71 × 4,470.99
  4. Step 4: Simplify right side
    10,395.78x = 69,652,256.62
  5. Step 5: Solve for x
    x = 69,652,256.62/10,395.78
  6. Step 6: Final answer
    x = 6,700.05

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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.