Home / 13,916.85-19,205.13-7,543.32

Finding the Fourth Proportional to 13,916.85, 19,205.13 and 7,543.32

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Solution

The fourth proportional to 13,916.85, 19,205.13 and 7,543.32 is: 10,409.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.85 : 19,205.13 = 7,543.32 : x
  2. Step 2: Convert to fraction form
    13,916.85/19,205.13 = 7,543.32/x
  3. Step 3: Cross multiply
    13,916.85x = 19,205.13 × 7,543.32
  4. Step 4: Simplify right side
    13,916.85x = 144,870,441.23
  5. Step 5: Solve for x
    x = 144,870,441.23/13,916.85
  6. Step 6: Final answer
    x = 10,409.71

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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.