Home / 13,509.55-18,653.06-8,732.32

Finding the Fourth Proportional to 13,509.55, 18,653.06 and 8,732.32

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Solution

The fourth proportional to 13,509.55, 18,653.06 and 8,732.32 is: 12,056.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.55 : 18,653.06 = 8,732.32 : x
  2. Step 2: Convert to fraction form
    13,509.55/18,653.06 = 8,732.32/x
  3. Step 3: Cross multiply
    13,509.55x = 18,653.06 × 8,732.32
  4. Step 4: Simplify right side
    13,509.55x = 162,884,488.90
  5. Step 5: Solve for x
    x = 162,884,488.90/13,509.55
  6. Step 6: Final answer
    x = 12,056.99

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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.