Home / 13,969.89-19,282.95-8,947.62

Finding the Fourth Proportional to 13,969.89, 19,282.95 and 8,947.62

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Solution

The fourth proportional to 13,969.89, 19,282.95 and 8,947.62 is: 12,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.89 : 19,282.95 = 8,947.62 : x
  2. Step 2: Convert to fraction form
    13,969.89/19,282.95 = 8,947.62/x
  3. Step 3: Cross multiply
    13,969.89x = 19,282.95 × 8,947.62
  4. Step 4: Simplify right side
    13,969.89x = 172,536,509.08
  5. Step 5: Solve for x
    x = 172,536,509.08/13,969.89
  6. Step 6: Final answer
    x = 12,350.60

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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.