Home / 15,406.06-21,260.52-9,036.42

Finding the Fourth Proportional to 15,406.06, 21,260.52 and 9,036.42

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Solution

The fourth proportional to 15,406.06, 21,260.52 and 9,036.42 is: 12,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.06 : 21,260.52 = 9,036.42 : x
  2. Step 2: Convert to fraction form
    15,406.06/21,260.52 = 9,036.42/x
  3. Step 3: Cross multiply
    15,406.06x = 21,260.52 × 9,036.42
  4. Step 4: Simplify right side
    15,406.06x = 192,118,942.96
  5. Step 5: Solve for x
    x = 192,118,942.96/15,406.06
  6. Step 6: Final answer
    x = 12,470.35

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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.