Home / 12,954.96-17,875.80-7,649.04

Finding the Fourth Proportional to 12,954.96, 17,875.80 and 7,649.04

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Solution

The fourth proportional to 12,954.96, 17,875.80 and 7,649.04 is: 10,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.96 : 17,875.80 = 7,649.04 : x
  2. Step 2: Convert to fraction form
    12,954.96/17,875.80 = 7,649.04/x
  3. Step 3: Cross multiply
    12,954.96x = 17,875.80 × 7,649.04
  4. Step 4: Simplify right side
    12,954.96x = 136,732,709.23
  5. Step 5: Solve for x
    x = 136,732,709.23/12,954.96
  6. Step 6: Final answer
    x = 10,554.47

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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.