Home / 13,541.87-18,688.47-7,573.19

Finding the Fourth Proportional to 13,541.87, 18,688.47 and 7,573.19

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Solution

The fourth proportional to 13,541.87, 18,688.47 and 7,573.19 is: 10,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.87 : 18,688.47 = 7,573.19 : x
  2. Step 2: Convert to fraction form
    13,541.87/18,688.47 = 7,573.19/x
  3. Step 3: Cross multiply
    13,541.87x = 18,688.47 × 7,573.19
  4. Step 4: Simplify right side
    13,541.87x = 141,531,240.68
  5. Step 5: Solve for x
    x = 141,531,240.68/13,541.87
  6. Step 6: Final answer
    x = 10,451.38

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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.