Home / 13,262.87-18,300.47-7,520.04

Finding the Fourth Proportional to 13,262.87, 18,300.47 and 7,520.04

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Solution

The fourth proportional to 13,262.87, 18,300.47 and 7,520.04 is: 10,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.87 : 18,300.47 = 7,520.04 : x
  2. Step 2: Convert to fraction form
    13,262.87/18,300.47 = 7,520.04/x
  3. Step 3: Cross multiply
    13,262.87x = 18,300.47 × 7,520.04
  4. Step 4: Simplify right side
    13,262.87x = 137,620,228.82
  5. Step 5: Solve for x
    x = 137,620,228.82/13,262.87
  6. Step 6: Final answer
    x = 10,376.35

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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.