Home / 18,787.79-25,927.45-10,289.76

Finding the Fourth Proportional to 18,787.79, 25,927.45 and 10,289.76

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Solution

The fourth proportional to 18,787.79, 25,927.45 and 10,289.76 is: 14,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.79 : 25,927.45 = 10,289.76 : x
  2. Step 2: Convert to fraction form
    18,787.79/25,927.45 = 10,289.76/x
  3. Step 3: Cross multiply
    18,787.79x = 25,927.45 × 10,289.76
  4. Step 4: Simplify right side
    18,787.79x = 266,787,237.91
  5. Step 5: Solve for x
    x = 266,787,237.91/18,787.79
  6. Step 6: Final answer
    x = 14,200.03

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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.