Home / 13,528.11-18,668.45-7,559.83

Finding the Fourth Proportional to 13,528.11, 18,668.45 and 7,559.83

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Solution

The fourth proportional to 13,528.11, 18,668.45 and 7,559.83 is: 10,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.11 : 18,668.45 = 7,559.83 : x
  2. Step 2: Convert to fraction form
    13,528.11/18,668.45 = 7,559.83/x
  3. Step 3: Cross multiply
    13,528.11x = 18,668.45 × 7,559.83
  4. Step 4: Simplify right side
    13,528.11x = 141,130,322.25
  5. Step 5: Solve for x
    x = 141,130,322.25/13,528.11
  6. Step 6: Final answer
    x = 10,432.37

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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.