Home / 12,528.55-18,792.81-5,133.02

Finding the Fourth Proportional to 12,528.55, 18,792.81 and 5,133.02

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Solution

The fourth proportional to 12,528.55, 18,792.81 and 5,133.02 is: 7,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.55 : 18,792.81 = 5,133.02 : x
  2. Step 2: Convert to fraction form
    12,528.55/18,792.81 = 5,133.02/x
  3. Step 3: Cross multiply
    12,528.55x = 18,792.81 × 5,133.02
  4. Step 4: Simplify right side
    12,528.55x = 96,463,869.59
  5. Step 5: Solve for x
    x = 96,463,869.59/12,528.55
  6. Step 6: Final answer
    x = 7,699.52

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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.