Home / 15,004.36-20,711.54-9,036.28

Finding the Fourth Proportional to 15,004.36, 20,711.54 and 9,036.28

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Solution

The fourth proportional to 15,004.36, 20,711.54 and 9,036.28 is: 12,473.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.36 : 20,711.54 = 9,036.28 : x
  2. Step 2: Convert to fraction form
    15,004.36/20,711.54 = 9,036.28/x
  3. Step 3: Cross multiply
    15,004.36x = 20,711.54 × 9,036.28
  4. Step 4: Simplify right side
    15,004.36x = 187,155,274.67
  5. Step 5: Solve for x
    x = 187,155,274.67/15,004.36
  6. Step 6: Final answer
    x = 12,473.39

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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.