Home / 15,512.50-23,218.80-8,106.40

Finding the Fourth Proportional to 15,512.50, 23,218.80 and 8,106.40

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Solution

The fourth proportional to 15,512.50, 23,218.80 and 8,106.40 is: 12,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.50 : 23,218.80 = 8,106.40 : x
  2. Step 2: Convert to fraction form
    15,512.50/23,218.80 = 8,106.40/x
  3. Step 3: Cross multiply
    15,512.50x = 23,218.80 × 8,106.40
  4. Step 4: Simplify right side
    15,512.50x = 188,220,880.32
  5. Step 5: Solve for x
    x = 188,220,880.32/15,512.50
  6. Step 6: Final answer
    x = 12,133.50

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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.