Home / 13,969.25-19,275.95-8,000.57

Finding the Fourth Proportional to 13,969.25, 19,275.95 and 8,000.57

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Solution

The fourth proportional to 13,969.25, 19,275.95 and 8,000.57 is: 11,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.25 : 19,275.95 = 8,000.57 : x
  2. Step 2: Convert to fraction form
    13,969.25/19,275.95 = 8,000.57/x
  3. Step 3: Cross multiply
    13,969.25x = 19,275.95 × 8,000.57
  4. Step 4: Simplify right side
    13,969.25x = 154,218,510.91
  5. Step 5: Solve for x
    x = 154,218,510.91/13,969.25
  6. Step 6: Final answer
    x = 11,039.85

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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.