Home / 13,523.36-18,660.40-7,554.28

Finding the Fourth Proportional to 13,523.36, 18,660.40 and 7,554.28

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Solution

The fourth proportional to 13,523.36, 18,660.40 and 7,554.28 is: 10,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.36 : 18,660.40 = 7,554.28 : x
  2. Step 2: Convert to fraction form
    13,523.36/18,660.40 = 7,554.28/x
  3. Step 3: Cross multiply
    13,523.36x = 18,660.40 × 7,554.28
  4. Step 4: Simplify right side
    13,523.36x = 140,965,886.51
  5. Step 5: Solve for x
    x = 140,965,886.51/13,523.36
  6. Step 6: Final answer
    x = 10,423.88

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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.