Home / 10,872.48-15,006.98-6,397.67

Finding the Fourth Proportional to 10,872.48, 15,006.98 and 6,397.67

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Solution

The fourth proportional to 10,872.48, 15,006.98 and 6,397.67 is: 8,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.48 : 15,006.98 = 6,397.67 : x
  2. Step 2: Convert to fraction form
    10,872.48/15,006.98 = 6,397.67/x
  3. Step 3: Cross multiply
    10,872.48x = 15,006.98 × 6,397.67
  4. Step 4: Simplify right side
    10,872.48x = 96,009,673.75
  5. Step 5: Solve for x
    x = 96,009,673.75/10,872.48
  6. Step 6: Final answer
    x = 8,830.52

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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.