Home / 10,916.85-15,067.23-6,440.34

Finding the Fourth Proportional to 10,916.85, 15,067.23 and 6,440.34

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Solution

The fourth proportional to 10,916.85, 15,067.23 and 6,440.34 is: 8,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.85 : 15,067.23 = 6,440.34 : x
  2. Step 2: Convert to fraction form
    10,916.85/15,067.23 = 6,440.34/x
  3. Step 3: Cross multiply
    10,916.85x = 15,067.23 × 6,440.34
  4. Step 4: Simplify right side
    10,916.85x = 97,038,084.06
  5. Step 5: Solve for x
    x = 97,038,084.06/10,916.85
  6. Step 6: Final answer
    x = 8,888.84

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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.