Home / 9,916.23-13,685.26-5,440.85

Finding the Fourth Proportional to 9,916.23, 13,685.26 and 5,440.85

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Solution

The fourth proportional to 9,916.23, 13,685.26 and 5,440.85 is: 7,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.23 : 13,685.26 = 5,440.85 : x
  2. Step 2: Convert to fraction form
    9,916.23/13,685.26 = 5,440.85/x
  3. Step 3: Cross multiply
    9,916.23x = 13,685.26 × 5,440.85
  4. Step 4: Simplify right side
    9,916.23x = 74,459,503.34
  5. Step 5: Solve for x
    x = 74,459,503.34/9,916.23
  6. Step 6: Final answer
    x = 7,508.85

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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.