Home / 9,807.20-14,705.76-2,880.80

Finding the Fourth Proportional to 9,807.20, 14,705.76 and 2,880.80

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Solution

The fourth proportional to 9,807.20, 14,705.76 and 2,880.80 is: 4,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,807.20 : 14,705.76 = 2,880.80 : x
  2. Step 2: Convert to fraction form
    9,807.20/14,705.76 = 2,880.80/x
  3. Step 3: Cross multiply
    9,807.20x = 14,705.76 × 2,880.80
  4. Step 4: Simplify right side
    9,807.20x = 42,364,353.41
  5. Step 5: Solve for x
    x = 42,364,353.41/9,807.20
  6. Step 6: Final answer
    x = 4,319.72

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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.