Home / 12,653.72-18,975.72-8,746.28

Finding the Fourth Proportional to 12,653.72, 18,975.72 and 8,746.28

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Solution

The fourth proportional to 12,653.72, 18,975.72 and 8,746.28 is: 13,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.72 : 18,975.72 = 8,746.28 : x
  2. Step 2: Convert to fraction form
    12,653.72/18,975.72 = 8,746.28/x
  3. Step 3: Cross multiply
    12,653.72x = 18,975.72 × 8,746.28
  4. Step 4: Simplify right side
    12,653.72x = 165,966,960.32
  5. Step 5: Solve for x
    x = 165,966,960.32/12,653.72
  6. Step 6: Final answer
    x = 13,116.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.