Home / 13,938.57-19,235.37-7,565.22

Finding the Fourth Proportional to 13,938.57, 19,235.37 and 7,565.22

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Solution

The fourth proportional to 13,938.57, 19,235.37 and 7,565.22 is: 10,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.57 : 19,235.37 = 7,565.22 : x
  2. Step 2: Convert to fraction form
    13,938.57/19,235.37 = 7,565.22/x
  3. Step 3: Cross multiply
    13,938.57x = 19,235.37 × 7,565.22
  4. Step 4: Simplify right side
    13,938.57x = 145,519,834.20
  5. Step 5: Solve for x
    x = 145,519,834.20/13,938.57
  6. Step 6: Final answer
    x = 10,440.08

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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.