Home / 13,070.05-18,036.63-7,101.74

Finding the Fourth Proportional to 13,070.05, 18,036.63 and 7,101.74

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Solution

The fourth proportional to 13,070.05, 18,036.63 and 7,101.74 is: 9,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.05 : 18,036.63 = 7,101.74 : x
  2. Step 2: Convert to fraction form
    13,070.05/18,036.63 = 7,101.74/x
  3. Step 3: Cross multiply
    13,070.05x = 18,036.63 × 7,101.74
  4. Step 4: Simplify right side
    13,070.05x = 128,091,400.37
  5. Step 5: Solve for x
    x = 128,091,400.37/13,070.05
  6. Step 6: Final answer
    x = 9,800.38

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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.