Home / 15,787.04-21,786.01-8,713.46

Finding the Fourth Proportional to 15,787.04, 21,786.01 and 8,713.46

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Solution

The fourth proportional to 15,787.04, 21,786.01 and 8,713.46 is: 12,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.04 : 21,786.01 = 8,713.46 : x
  2. Step 2: Convert to fraction form
    15,787.04/21,786.01 = 8,713.46/x
  3. Step 3: Cross multiply
    15,787.04x = 21,786.01 × 8,713.46
  4. Step 4: Simplify right side
    15,787.04x = 189,831,526.69
  5. Step 5: Solve for x
    x = 189,831,526.69/15,787.04
  6. Step 6: Final answer
    x = 12,024.52

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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.