Home / 13,557.58-18,708.58-7,588.24

Finding the Fourth Proportional to 13,557.58, 18,708.58 and 7,588.24

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Solution

The fourth proportional to 13,557.58, 18,708.58 and 7,588.24 is: 10,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.58 : 18,708.58 = 7,588.24 : x
  2. Step 2: Convert to fraction form
    13,557.58/18,708.58 = 7,588.24/x
  3. Step 3: Cross multiply
    13,557.58x = 18,708.58 × 7,588.24
  4. Step 4: Simplify right side
    13,557.58x = 141,965,195.10
  5. Step 5: Solve for x
    x = 141,965,195.10/13,557.58
  6. Step 6: Final answer
    x = 10,471.28

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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.