Home / 13,541.68-18,687.72-7,573.60

Finding the Fourth Proportional to 13,541.68, 18,687.72 and 7,573.60

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Solution

The fourth proportional to 13,541.68, 18,687.72 and 7,573.60 is: 10,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.68 : 18,687.72 = 7,573.60 : x
  2. Step 2: Convert to fraction form
    13,541.68/18,687.72 = 7,573.60/x
  3. Step 3: Cross multiply
    13,541.68x = 18,687.72 × 7,573.60
  4. Step 4: Simplify right side
    13,541.68x = 141,533,316.19
  5. Step 5: Solve for x
    x = 141,533,316.19/13,541.68
  6. Step 6: Final answer
    x = 10,451.68

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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.