Home / 15,538.08-21,450.48-10,528.76

Finding the Fourth Proportional to 15,538.08, 21,450.48 and 10,528.76

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Solution

The fourth proportional to 15,538.08, 21,450.48 and 10,528.76 is: 14,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.08 : 21,450.48 = 10,528.76 : x
  2. Step 2: Convert to fraction form
    15,538.08/21,450.48 = 10,528.76/x
  3. Step 3: Cross multiply
    15,538.08x = 21,450.48 × 10,528.76
  4. Step 4: Simplify right side
    15,538.08x = 225,846,955.80
  5. Step 5: Solve for x
    x = 225,846,955.80/15,538.08
  6. Step 6: Final answer
    x = 14,535.06

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Half scale
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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.