Home / 15,417.06-21,277.26-9,129.84

Finding the Fourth Proportional to 15,417.06, 21,277.26 and 9,129.84

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Solution

The fourth proportional to 15,417.06, 21,277.26 and 9,129.84 is: 12,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.06 : 21,277.26 = 9,129.84 : x
  2. Step 2: Convert to fraction form
    15,417.06/21,277.26 = 9,129.84/x
  3. Step 3: Cross multiply
    15,417.06x = 21,277.26 × 9,129.84
  4. Step 4: Simplify right side
    15,417.06x = 194,257,979.44
  5. Step 5: Solve for x
    x = 194,257,979.44/15,417.06
  6. Step 6: Final answer
    x = 12,600.20

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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.