Home / 14,639.87-20,203.09-7,925.50

Finding the Fourth Proportional to 14,639.87, 20,203.09 and 7,925.50

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Solution

The fourth proportional to 14,639.87, 20,203.09 and 7,925.50 is: 10,937.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.87 : 20,203.09 = 7,925.50 : x
  2. Step 2: Convert to fraction form
    14,639.87/20,203.09 = 7,925.50/x
  3. Step 3: Cross multiply
    14,639.87x = 20,203.09 × 7,925.50
  4. Step 4: Simplify right side
    14,639.87x = 160,119,567.15
  5. Step 5: Solve for x
    x = 160,119,567.15/14,639.87
  6. Step 6: Final answer
    x = 10,937.22

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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.