Home / 13,527.05-18,681.99-9,289.28

Finding the Fourth Proportional to 13,527.05, 18,681.99 and 9,289.28

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Solution

The fourth proportional to 13,527.05, 18,681.99 and 9,289.28 is: 12,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.05 : 18,681.99 = 9,289.28 : x
  2. Step 2: Convert to fraction form
    13,527.05/18,681.99 = 9,289.28/x
  3. Step 3: Cross multiply
    13,527.05x = 18,681.99 × 9,289.28
  4. Step 4: Simplify right side
    13,527.05x = 173,542,300.19
  5. Step 5: Solve for x
    x = 173,542,300.19/13,527.05
  6. Step 6: Final answer
    x = 12,829.28

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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.