Home / 9,355.50-12,905.93-6,528.80

Finding the Fourth Proportional to 9,355.50, 12,905.93 and 6,528.80

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Solution

The fourth proportional to 9,355.50, 12,905.93 and 6,528.80 is: 9,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.50 : 12,905.93 = 6,528.80 : x
  2. Step 2: Convert to fraction form
    9,355.50/12,905.93 = 6,528.80/x
  3. Step 3: Cross multiply
    9,355.50x = 12,905.93 × 6,528.80
  4. Step 4: Simplify right side
    9,355.50x = 84,260,284.37
  5. Step 5: Solve for x
    x = 84,260,284.37/9,355.50
  6. Step 6: Final answer
    x = 9,006.50

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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.