Home / 15,616.77-21,551.21-9,647.07

Finding the Fourth Proportional to 15,616.77, 21,551.21 and 9,647.07

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Solution

The fourth proportional to 15,616.77, 21,551.21 and 9,647.07 is: 13,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.77 : 21,551.21 = 9,647.07 : x
  2. Step 2: Convert to fraction form
    15,616.77/21,551.21 = 9,647.07/x
  3. Step 3: Cross multiply
    15,616.77x = 21,551.21 × 9,647.07
  4. Step 4: Simplify right side
    15,616.77x = 207,905,983.22
  5. Step 5: Solve for x
    x = 207,905,983.22/15,616.77
  6. Step 6: Final answer
    x = 13,313.00

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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.