Home / 15,417.09-21,274.52-9,128.25

Finding the Fourth Proportional to 15,417.09, 21,274.52 and 9,128.25

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Solution

The fourth proportional to 15,417.09, 21,274.52 and 9,128.25 is: 12,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.09 : 21,274.52 = 9,128.25 : x
  2. Step 2: Convert to fraction form
    15,417.09/21,274.52 = 9,128.25/x
  3. Step 3: Cross multiply
    15,417.09x = 21,274.52 × 9,128.25
  4. Step 4: Simplify right side
    15,417.09x = 194,199,091.55
  5. Step 5: Solve for x
    x = 194,199,091.55/15,417.09
  6. Step 6: Final answer
    x = 12,596.35

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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.