Home / 15,585.24-21,499.38-10,542.72

Finding the Fourth Proportional to 15,585.24, 21,499.38 and 10,542.72

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Solution

The fourth proportional to 15,585.24, 21,499.38 and 10,542.72 is: 14,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.24 : 21,499.38 = 10,542.72 : x
  2. Step 2: Convert to fraction form
    15,585.24/21,499.38 = 10,542.72/x
  3. Step 3: Cross multiply
    15,585.24x = 21,499.38 × 10,542.72
  4. Step 4: Simplify right side
    15,585.24x = 226,661,943.51
  5. Step 5: Solve for x
    x = 226,661,943.51/15,585.24
  6. Step 6: Final answer
    x = 14,543.37

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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.