Home / 10,521.63-15,789.84-9,516.67

Finding the Fourth Proportional to 10,521.63, 15,789.84 and 9,516.67

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Solution

The fourth proportional to 10,521.63, 15,789.84 and 9,516.67 is: 14,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.63 : 15,789.84 = 9,516.67 : x
  2. Step 2: Convert to fraction form
    10,521.63/15,789.84 = 9,516.67/x
  3. Step 3: Cross multiply
    10,521.63x = 15,789.84 × 9,516.67
  4. Step 4: Simplify right side
    10,521.63x = 150,266,621.47
  5. Step 5: Solve for x
    x = 150,266,621.47/10,521.63
  6. Step 6: Final answer
    x = 14,281.69

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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.