Home / 13,860.20-19,127.52-7,572.58

Finding the Fourth Proportional to 13,860.20, 19,127.52 and 7,572.58

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Solution

The fourth proportional to 13,860.20, 19,127.52 and 7,572.58 is: 10,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.20 : 19,127.52 = 7,572.58 : x
  2. Step 2: Convert to fraction form
    13,860.20/19,127.52 = 7,572.58/x
  3. Step 3: Cross multiply
    13,860.20x = 19,127.52 × 7,572.58
  4. Step 4: Simplify right side
    13,860.20x = 144,844,675.40
  5. Step 5: Solve for x
    x = 144,844,675.40/13,860.20
  6. Step 6: Final answer
    x = 10,450.40

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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.