Home / 15,301.56-21,118.47-9,336.69

Finding the Fourth Proportional to 15,301.56, 21,118.47 and 9,336.69

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Solution

The fourth proportional to 15,301.56, 21,118.47 and 9,336.69 is: 12,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.56 : 21,118.47 = 9,336.69 : x
  2. Step 2: Convert to fraction form
    15,301.56/21,118.47 = 9,336.69/x
  3. Step 3: Cross multiply
    15,301.56x = 21,118.47 × 9,336.69
  4. Step 4: Simplify right side
    15,301.56x = 197,176,684.57
  5. Step 5: Solve for x
    x = 197,176,684.57/15,301.56
  6. Step 6: Final answer
    x = 12,886.05

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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.