Home / 13,070.40-18,037.10-7,102.02

Finding the Fourth Proportional to 13,070.40, 18,037.10 and 7,102.02

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Solution

The fourth proportional to 13,070.40, 18,037.10 and 7,102.02 is: 9,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.40 : 18,037.10 = 7,102.02 : x
  2. Step 2: Convert to fraction form
    13,070.40/18,037.10 = 7,102.02/x
  3. Step 3: Cross multiply
    13,070.40x = 18,037.10 × 7,102.02
  4. Step 4: Simplify right side
    13,070.40x = 128,099,844.94
  5. Step 5: Solve for x
    x = 128,099,844.94/13,070.40
  6. Step 6: Final answer
    x = 9,800.76

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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.