Home / 15,322.29-21,152.82-10,312.83

Finding the Fourth Proportional to 15,322.29, 21,152.82 and 10,312.83

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Solution

The fourth proportional to 15,322.29, 21,152.82 and 10,312.83 is: 14,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.29 : 21,152.82 = 10,312.83 : x
  2. Step 2: Convert to fraction form
    15,322.29/21,152.82 = 10,312.83/x
  3. Step 3: Cross multiply
    15,322.29x = 21,152.82 × 10,312.83
  4. Step 4: Simplify right side
    15,322.29x = 218,145,436.68
  5. Step 5: Solve for x
    x = 218,145,436.68/15,322.29
  6. Step 6: Final answer
    x = 14,237.13

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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.