Home / 13,528.84-20,287.58-4,761.64

Finding the Fourth Proportional to 13,528.84, 20,287.58 and 4,761.64

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Solution

The fourth proportional to 13,528.84, 20,287.58 and 4,761.64 is: 7,140.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.84 : 20,287.58 = 4,761.64 : x
  2. Step 2: Convert to fraction form
    13,528.84/20,287.58 = 4,761.64/x
  3. Step 3: Cross multiply
    13,528.84x = 20,287.58 × 4,761.64
  4. Step 4: Simplify right side
    13,528.84x = 96,602,152.43
  5. Step 5: Solve for x
    x = 96,602,152.43/13,528.84
  6. Step 6: Final answer
    x = 7,140.46

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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.