Home / 15,293.77-21,105.29-9,325.08

Finding the Fourth Proportional to 15,293.77, 21,105.29 and 9,325.08

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Solution

The fourth proportional to 15,293.77, 21,105.29 and 9,325.08 is: 12,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.77 : 21,105.29 = 9,325.08 : x
  2. Step 2: Convert to fraction form
    15,293.77/21,105.29 = 9,325.08/x
  3. Step 3: Cross multiply
    15,293.77x = 21,105.29 × 9,325.08
  4. Step 4: Simplify right side
    15,293.77x = 196,808,540.99
  5. Step 5: Solve for x
    x = 196,808,540.99/15,293.77
  6. Step 6: Final answer
    x = 12,868.55

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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.