Home / 13,541.57-18,687.60-7,572.59

Finding the Fourth Proportional to 13,541.57, 18,687.60 and 7,572.59

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Solution

The fourth proportional to 13,541.57, 18,687.60 and 7,572.59 is: 10,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.57 : 18,687.60 = 7,572.59 : x
  2. Step 2: Convert to fraction form
    13,541.57/18,687.60 = 7,572.59/x
  3. Step 3: Cross multiply
    13,541.57x = 18,687.60 × 7,572.59
  4. Step 4: Simplify right side
    13,541.57x = 141,513,532.88
  5. Step 5: Solve for x
    x = 141,513,532.88/13,541.57
  6. Step 6: Final answer
    x = 10,450.30

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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.