Home / 13,990.02-19,305.60-7,616.64

Finding the Fourth Proportional to 13,990.02, 19,305.60 and 7,616.64

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Solution

The fourth proportional to 13,990.02, 19,305.60 and 7,616.64 is: 10,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.02 : 19,305.60 = 7,616.64 : x
  2. Step 2: Convert to fraction form
    13,990.02/19,305.60 = 7,616.64/x
  3. Step 3: Cross multiply
    13,990.02x = 19,305.60 × 7,616.64
  4. Step 4: Simplify right side
    13,990.02x = 147,043,805.18
  5. Step 5: Solve for x
    x = 147,043,805.18/13,990.02
  6. Step 6: Final answer
    x = 10,510.62

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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.