Home / 13,069.15-18,038.28-8,037.70

Finding the Fourth Proportional to 13,069.15, 18,038.28 and 8,037.70

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Solution

The fourth proportional to 13,069.15, 18,038.28 and 8,037.70 is: 11,093.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.15 : 18,038.28 = 8,037.70 : x
  2. Step 2: Convert to fraction form
    13,069.15/18,038.28 = 8,037.70/x
  3. Step 3: Cross multiply
    13,069.15x = 18,038.28 × 8,037.70
  4. Step 4: Simplify right side
    13,069.15x = 144,986,283.16
  5. Step 5: Solve for x
    x = 144,986,283.16/13,069.15
  6. Step 6: Final answer
    x = 11,093.78

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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.