Home / 9,918.02-13,687.49-5,441.78

Finding the Fourth Proportional to 9,918.02, 13,687.49 and 5,441.78

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Solution

The fourth proportional to 9,918.02, 13,687.49 and 5,441.78 is: 7,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.02 : 13,687.49 = 5,441.78 : x
  2. Step 2: Convert to fraction form
    9,918.02/13,687.49 = 5,441.78/x
  3. Step 3: Cross multiply
    9,918.02x = 13,687.49 × 5,441.78
  4. Step 4: Simplify right side
    9,918.02x = 74,484,354.68
  5. Step 5: Solve for x
    x = 74,484,354.68/9,918.02
  6. Step 6: Final answer
    x = 7,510.00

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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.