Home / 13,527.48-18,668.64-7,559.28

Finding the Fourth Proportional to 13,527.48, 18,668.64 and 7,559.28

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Solution

The fourth proportional to 13,527.48, 18,668.64 and 7,559.28 is: 10,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.48 : 18,668.64 = 7,559.28 : x
  2. Step 2: Convert to fraction form
    13,527.48/18,668.64 = 7,559.28/x
  3. Step 3: Cross multiply
    13,527.48x = 18,668.64 × 7,559.28
  4. Step 4: Simplify right side
    13,527.48x = 141,121,476.98
  5. Step 5: Solve for x
    x = 141,121,476.98/13,527.48
  6. Step 6: Final answer
    x = 10,432.21

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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.