Home / 15,501.53-21,395.99-8,791.16

Finding the Fourth Proportional to 15,501.53, 21,395.99 and 8,791.16

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Solution

The fourth proportional to 15,501.53, 21,395.99 and 8,791.16 is: 12,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.53 : 21,395.99 = 8,791.16 : x
  2. Step 2: Convert to fraction form
    15,501.53/21,395.99 = 8,791.16/x
  3. Step 3: Cross multiply
    15,501.53x = 21,395.99 × 8,791.16
  4. Step 4: Simplify right side
    15,501.53x = 188,095,646.92
  5. Step 5: Solve for x
    x = 188,095,646.92/15,501.53
  6. Step 6: Final answer
    x = 12,134.01

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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.