Home / 13,070.97-18,037.51-7,102.51

Finding the Fourth Proportional to 13,070.97, 18,037.51 and 7,102.51

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Solution

The fourth proportional to 13,070.97, 18,037.51 and 7,102.51 is: 9,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.97 : 18,037.51 = 7,102.51 : x
  2. Step 2: Convert to fraction form
    13,070.97/18,037.51 = 7,102.51/x
  3. Step 3: Cross multiply
    13,070.97x = 18,037.51 × 7,102.51
  4. Step 4: Simplify right side
    13,070.97x = 128,111,603.01
  5. Step 5: Solve for x
    x = 128,111,603.01/13,070.97
  6. Step 6: Final answer
    x = 9,801.23

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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.