Home / 15,504.77-21,389.73-9,213.50

Finding the Fourth Proportional to 15,504.77, 21,389.73 and 9,213.50

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Solution

The fourth proportional to 15,504.77, 21,389.73 and 9,213.50 is: 12,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.77 : 21,389.73 = 9,213.50 : x
  2. Step 2: Convert to fraction form
    15,504.77/21,389.73 = 9,213.50/x
  3. Step 3: Cross multiply
    15,504.77x = 21,389.73 × 9,213.50
  4. Step 4: Simplify right side
    15,504.77x = 197,074,277.36
  5. Step 5: Solve for x
    x = 197,074,277.36/15,504.77
  6. Step 6: Final answer
    x = 12,710.56

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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.