Home / 15,809.39-21,827.13-10,146.58

Finding the Fourth Proportional to 15,809.39, 21,827.13 and 10,146.58

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Solution

The fourth proportional to 15,809.39, 21,827.13 and 10,146.58 is: 14,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.39 : 21,827.13 = 10,146.58 : x
  2. Step 2: Convert to fraction form
    15,809.39/21,827.13 = 10,146.58/x
  3. Step 3: Cross multiply
    15,809.39x = 21,827.13 × 10,146.58
  4. Step 4: Simplify right side
    15,809.39x = 221,470,628.10
  5. Step 5: Solve for x
    x = 221,470,628.10/15,809.39
  6. Step 6: Final answer
    x = 14,008.80

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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.