Home / 15,708.84-21,677.16-8,994.52

Finding the Fourth Proportional to 15,708.84, 21,677.16 and 8,994.52

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Solution

The fourth proportional to 15,708.84, 21,677.16 and 8,994.52 is: 12,411.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.84 : 21,677.16 = 8,994.52 : x
  2. Step 2: Convert to fraction form
    15,708.84/21,677.16 = 8,994.52/x
  3. Step 3: Cross multiply
    15,708.84x = 21,677.16 × 8,994.52
  4. Step 4: Simplify right side
    15,708.84x = 194,975,649.16
  5. Step 5: Solve for x
    x = 194,975,649.16/15,708.84
  6. Step 6: Final answer
    x = 12,411.84

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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.