Home / 14,151.47-21,230.85-5,387.07

Finding the Fourth Proportional to 14,151.47, 21,230.85 and 5,387.07

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Solution

The fourth proportional to 14,151.47, 21,230.85 and 5,387.07 is: 8,081.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.47 : 21,230.85 = 5,387.07 : x
  2. Step 2: Convert to fraction form
    14,151.47/21,230.85 = 5,387.07/x
  3. Step 3: Cross multiply
    14,151.47x = 21,230.85 × 5,387.07
  4. Step 4: Simplify right side
    14,151.47x = 114,372,075.11
  5. Step 5: Solve for x
    x = 114,372,075.11/14,151.47
  6. Step 6: Final answer
    x = 8,081.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.