Home / 15,455.93-21,329.56-8,741.23

Finding the Fourth Proportional to 15,455.93, 21,329.56 and 8,741.23

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Solution

The fourth proportional to 15,455.93, 21,329.56 and 8,741.23 is: 12,063.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.93 : 21,329.56 = 8,741.23 : x
  2. Step 2: Convert to fraction form
    15,455.93/21,329.56 = 8,741.23/x
  3. Step 3: Cross multiply
    15,455.93x = 21,329.56 × 8,741.23
  4. Step 4: Simplify right side
    15,455.93x = 186,446,547.36
  5. Step 5: Solve for x
    x = 186,446,547.36/15,455.93
  6. Step 6: Final answer
    x = 12,063.11

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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.