Home / 21,097.63-29,118.37-12,714.13

Finding the Fourth Proportional to 21,097.63, 29,118.37 and 12,714.13

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Solution

The fourth proportional to 21,097.63, 29,118.37 and 12,714.13 is: 17,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.63 : 29,118.37 = 12,714.13 : x
  2. Step 2: Convert to fraction form
    21,097.63/29,118.37 = 12,714.13/x
  3. Step 3: Cross multiply
    21,097.63x = 29,118.37 × 12,714.13
  4. Step 4: Simplify right side
    21,097.63x = 370,214,564.19
  5. Step 5: Solve for x
    x = 370,214,564.19/21,097.63
  6. Step 6: Final answer
    x = 17,547.69

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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.