Home / 10,123.99-15,157.80-6,787.67

Finding the Fourth Proportional to 10,123.99, 15,157.80 and 6,787.67

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Solution

The fourth proportional to 10,123.99, 15,157.80 and 6,787.67 is: 10,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.99 : 15,157.80 = 6,787.67 : x
  2. Step 2: Convert to fraction form
    10,123.99/15,157.80 = 6,787.67/x
  3. Step 3: Cross multiply
    10,123.99x = 15,157.80 × 6,787.67
  4. Step 4: Simplify right side
    10,123.99x = 102,886,068.54
  5. Step 5: Solve for x
    x = 102,886,068.54/10,123.99
  6. Step 6: Final answer
    x = 10,162.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.