Home / 15,844.09-21,870.35-9,798.96

Finding the Fourth Proportional to 15,844.09, 21,870.35 and 9,798.96

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Solution

The fourth proportional to 15,844.09, 21,870.35 and 9,798.96 is: 13,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.09 : 21,870.35 = 9,798.96 : x
  2. Step 2: Convert to fraction form
    15,844.09/21,870.35 = 9,798.96/x
  3. Step 3: Cross multiply
    15,844.09x = 21,870.35 × 9,798.96
  4. Step 4: Simplify right side
    15,844.09x = 214,306,526.49
  5. Step 5: Solve for x
    x = 214,306,526.49/15,844.09
  6. Step 6: Final answer
    x = 13,525.96

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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.