Home / 15,870.24-21,887.28-9,895.68

Finding the Fourth Proportional to 15,870.24, 21,887.28 and 9,895.68

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Solution

The fourth proportional to 15,870.24, 21,887.28 and 9,895.68 is: 13,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.24 : 21,887.28 = 9,895.68 : x
  2. Step 2: Convert to fraction form
    15,870.24/21,887.28 = 9,895.68/x
  3. Step 3: Cross multiply
    15,870.24x = 21,887.28 × 9,895.68
  4. Step 4: Simplify right side
    15,870.24x = 216,589,518.95
  5. Step 5: Solve for x
    x = 216,589,518.95/15,870.24
  6. Step 6: Final answer
    x = 13,647.53

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