Home / 13,525.43-18,664.98-7,557.03

Finding the Fourth Proportional to 13,525.43, 18,664.98 and 7,557.03

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Solution

The fourth proportional to 13,525.43, 18,664.98 and 7,557.03 is: 10,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.43 : 18,664.98 = 7,557.03 : x
  2. Step 2: Convert to fraction form
    13,525.43/18,664.98 = 7,557.03/x
  3. Step 3: Cross multiply
    13,525.43x = 18,664.98 × 7,557.03
  4. Step 4: Simplify right side
    13,525.43x = 141,051,813.81
  5. Step 5: Solve for x
    x = 141,051,813.81/13,525.43
  6. Step 6: Final answer
    x = 10,428.64

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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.