Home / 15,810-21,822.35-10,436.36

Finding the Fourth Proportional to 15,810, 21,822.35 and 10,436.36

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Solution

The fourth proportional to 15,810, 21,822.35 and 10,436.36 is: 14,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810 : 21,822.35 = 10,436.36 : x
  2. Step 2: Convert to fraction form
    15,810/21,822.35 = 10,436.36/x
  3. Step 3: Cross multiply
    15,810x = 21,822.35 × 10,436.36
  4. Step 4: Simplify right side
    15,810x = 227,745,900.65
  5. Step 5: Solve for x
    x = 227,745,900.65/15,810
  6. Step 6: Final answer
    x = 14,405.18

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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.