Home / 13,069.81-18,036.36-7,101.49

Finding the Fourth Proportional to 13,069.81, 18,036.36 and 7,101.49

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Solution

The fourth proportional to 13,069.81, 18,036.36 and 7,101.49 is: 9,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.81 : 18,036.36 = 7,101.49 : x
  2. Step 2: Convert to fraction form
    13,069.81/18,036.36 = 7,101.49/x
  3. Step 3: Cross multiply
    13,069.81x = 18,036.36 × 7,101.49
  4. Step 4: Simplify right side
    13,069.81x = 128,085,030.18
  5. Step 5: Solve for x
    x = 128,085,030.18/13,069.81
  6. Step 6: Final answer
    x = 9,800.07

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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.