Home / 10,688.80-16,033.20-3,762.40

Finding the Fourth Proportional to 10,688.80, 16,033.20 and 3,762.40

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Solution

The fourth proportional to 10,688.80, 16,033.20 and 3,762.40 is: 5,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.80 : 16,033.20 = 3,762.40 : x
  2. Step 2: Convert to fraction form
    10,688.80/16,033.20 = 3,762.40/x
  3. Step 3: Cross multiply
    10,688.80x = 16,033.20 × 3,762.40
  4. Step 4: Simplify right side
    10,688.80x = 60,323,311.68
  5. Step 5: Solve for x
    x = 60,323,311.68/10,688.80
  6. Step 6: Final answer
    x = 5,643.60

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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.