Home / 15,537.95-21,450.31-10,528.64

Finding the Fourth Proportional to 15,537.95, 21,450.31 and 10,528.64

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Solution

The fourth proportional to 15,537.95, 21,450.31 and 10,528.64 is: 14,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.95 : 21,450.31 = 10,528.64 : x
  2. Step 2: Convert to fraction form
    15,537.95/21,450.31 = 10,528.64/x
  3. Step 3: Cross multiply
    15,537.95x = 21,450.31 × 10,528.64
  4. Step 4: Simplify right side
    15,537.95x = 225,842,458.31
  5. Step 5: Solve for x
    x = 225,842,458.31/15,537.95
  6. Step 6: Final answer
    x = 14,534.90

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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.