Home / 13,478.52-20,223.18-6,907.08

Finding the Fourth Proportional to 13,478.52, 20,223.18 and 6,907.08

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Solution

The fourth proportional to 13,478.52, 20,223.18 and 6,907.08 is: 10,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.52 : 20,223.18 = 6,907.08 : x
  2. Step 2: Convert to fraction form
    13,478.52/20,223.18 = 6,907.08/x
  3. Step 3: Cross multiply
    13,478.52x = 20,223.18 × 6,907.08
  4. Step 4: Simplify right side
    13,478.52x = 139,683,122.11
  5. Step 5: Solve for x
    x = 139,683,122.11/13,478.52
  6. Step 6: Final answer
    x = 10,363.39

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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.