Home / 16,705.13-23,053.08-9,990.76

Finding the Fourth Proportional to 16,705.13, 23,053.08 and 9,990.76

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Solution

The fourth proportional to 16,705.13, 23,053.08 and 9,990.76 is: 13,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,705.13 : 23,053.08 = 9,990.76 : x
  2. Step 2: Convert to fraction form
    16,705.13/23,053.08 = 9,990.76/x
  3. Step 3: Cross multiply
    16,705.13x = 23,053.08 × 9,990.76
  4. Step 4: Simplify right side
    16,705.13x = 230,317,772.34
  5. Step 5: Solve for x
    x = 230,317,772.34/16,705.13
  6. Step 6: Final answer
    x = 13,787.25

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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.