Home / 13,070.43-18,037.28-7,102.09

Finding the Fourth Proportional to 13,070.43, 18,037.28 and 7,102.09

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Solution

The fourth proportional to 13,070.43, 18,037.28 and 7,102.09 is: 9,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.43 : 18,037.28 = 7,102.09 : x
  2. Step 2: Convert to fraction form
    13,070.43/18,037.28 = 7,102.09/x
  3. Step 3: Cross multiply
    13,070.43x = 18,037.28 × 7,102.09
  4. Step 4: Simplify right side
    13,070.43x = 128,102,385.92
  5. Step 5: Solve for x
    x = 128,102,385.92/13,070.43
  6. Step 6: Final answer
    x = 9,800.93

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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.