Home / 9,528.64-13,137.60-7,856.80

Finding the Fourth Proportional to 9,528.64, 13,137.60 and 7,856.80

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Solution

The fourth proportional to 9,528.64, 13,137.60 and 7,856.80 is: 10,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,528.64 : 13,137.60 = 7,856.80 : x
  2. Step 2: Convert to fraction form
    9,528.64/13,137.60 = 7,856.80/x
  3. Step 3: Cross multiply
    9,528.64x = 13,137.60 × 7,856.80
  4. Step 4: Simplify right side
    9,528.64x = 103,219,495.68
  5. Step 5: Solve for x
    x = 103,219,495.68/9,528.64
  6. Step 6: Final answer
    x = 10,832.55

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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.