Home / 15,712.95-21,677.69-8,994.96

Finding the Fourth Proportional to 15,712.95, 21,677.69 and 8,994.96

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Solution

The fourth proportional to 15,712.95, 21,677.69 and 8,994.96 is: 12,409.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712.95 : 21,677.69 = 8,994.96 : x
  2. Step 2: Convert to fraction form
    15,712.95/21,677.69 = 8,994.96/x
  3. Step 3: Cross multiply
    15,712.95x = 21,677.69 × 8,994.96
  4. Step 4: Simplify right side
    15,712.95x = 194,989,801.08
  5. Step 5: Solve for x
    x = 194,989,801.08/15,712.95
  6. Step 6: Final answer
    x = 12,409.50

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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.