Home / 15,653.12-21,605.13-10,625.72

Finding the Fourth Proportional to 15,653.12, 21,605.13 and 10,625.72

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Solution

The fourth proportional to 15,653.12, 21,605.13 and 10,625.72 is: 14,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.12 : 21,605.13 = 10,625.72 : x
  2. Step 2: Convert to fraction form
    15,653.12/21,605.13 = 10,625.72/x
  3. Step 3: Cross multiply
    15,653.12x = 21,605.13 × 10,625.72
  4. Step 4: Simplify right side
    15,653.12x = 229,569,953.92
  5. Step 5: Solve for x
    x = 229,569,953.92/15,653.12
  6. Step 6: Final answer
    x = 14,666.09

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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.