Home / 11,384.40-15,711.59-6,907.80

Finding the Fourth Proportional to 11,384.40, 15,711.59 and 6,907.80

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Solution

The fourth proportional to 11,384.40, 15,711.59 and 6,907.80 is: 9,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.40 : 15,711.59 = 6,907.80 : x
  2. Step 2: Convert to fraction form
    11,384.40/15,711.59 = 6,907.80/x
  3. Step 3: Cross multiply
    11,384.40x = 15,711.59 × 6,907.80
  4. Step 4: Simplify right side
    11,384.40x = 108,532,521.40
  5. Step 5: Solve for x
    x = 108,532,521.40/11,384.40
  6. Step 6: Final answer
    x = 9,533.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.