Home / 10,916.34-15,063.90-6,441.50

Finding the Fourth Proportional to 10,916.34, 15,063.90 and 6,441.50

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Solution

The fourth proportional to 10,916.34, 15,063.90 and 6,441.50 is: 8,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.34 : 15,063.90 = 6,441.50 : x
  2. Step 2: Convert to fraction form
    10,916.34/15,063.90 = 6,441.50/x
  3. Step 3: Cross multiply
    10,916.34x = 15,063.90 × 6,441.50
  4. Step 4: Simplify right side
    10,916.34x = 97,034,111.85
  5. Step 5: Solve for x
    x = 97,034,111.85/10,916.34
  6. Step 6: Final answer
    x = 8,888.89

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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.