Home / 15,554.40-21,458.94-9,575.68

Finding the Fourth Proportional to 15,554.40, 21,458.94 and 9,575.68

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Solution

The fourth proportional to 15,554.40, 21,458.94 and 9,575.68 is: 13,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.40 : 21,458.94 = 9,575.68 : x
  2. Step 2: Convert to fraction form
    15,554.40/21,458.94 = 9,575.68/x
  3. Step 3: Cross multiply
    15,554.40x = 21,458.94 × 9,575.68
  4. Step 4: Simplify right side
    15,554.40x = 205,483,942.58
  5. Step 5: Solve for x
    x = 205,483,942.58/15,554.40
  6. Step 6: Final answer
    x = 13,210.66

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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.