Home / 12,714.72-17,547.20-7,126.08

Finding the Fourth Proportional to 12,714.72, 17,547.20 and 7,126.08

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Solution

The fourth proportional to 12,714.72, 17,547.20 and 7,126.08 is: 9,834.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.72 : 17,547.20 = 7,126.08 : x
  2. Step 2: Convert to fraction form
    12,714.72/17,547.20 = 7,126.08/x
  3. Step 3: Cross multiply
    12,714.72x = 17,547.20 × 7,126.08
  4. Step 4: Simplify right side
    12,714.72x = 125,042,750.98
  5. Step 5: Solve for x
    x = 125,042,750.98/12,714.72
  6. Step 6: Final answer
    x = 9,834.49

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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.