Home / 13,070.13-18,036.30-7,101.68

Finding the Fourth Proportional to 13,070.13, 18,036.30 and 7,101.68

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Solution

The fourth proportional to 13,070.13, 18,036.30 and 7,101.68 is: 9,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.13 : 18,036.30 = 7,101.68 : x
  2. Step 2: Convert to fraction form
    13,070.13/18,036.30 = 7,101.68/x
  3. Step 3: Cross multiply
    13,070.13x = 18,036.30 × 7,101.68
  4. Step 4: Simplify right side
    13,070.13x = 128,087,907.51
  5. Step 5: Solve for x
    x = 128,087,907.51/13,070.13
  6. Step 6: Final answer
    x = 9,800.04

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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.