Home / 15,405.52-23,120.16-11,465.68

Finding the Fourth Proportional to 15,405.52, 23,120.16 and 11,465.68

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Solution

The fourth proportional to 15,405.52, 23,120.16 and 11,465.68 is: 17,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.52 : 23,120.16 = 11,465.68 : x
  2. Step 2: Convert to fraction form
    15,405.52/23,120.16 = 11,465.68/x
  3. Step 3: Cross multiply
    15,405.52x = 23,120.16 × 11,465.68
  4. Step 4: Simplify right side
    15,405.52x = 265,088,356.11
  5. Step 5: Solve for x
    x = 265,088,356.11/15,405.52
  6. Step 6: Final answer
    x = 17,207.36

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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.