Home / 15,719.92-23,580.16-12,585.36

Finding the Fourth Proportional to 15,719.92, 23,580.16 and 12,585.36

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Solution

The fourth proportional to 15,719.92, 23,580.16 and 12,585.36 is: 18,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.92 : 23,580.16 = 12,585.36 : x
  2. Step 2: Convert to fraction form
    15,719.92/23,580.16 = 12,585.36/x
  3. Step 3: Cross multiply
    15,719.92x = 23,580.16 × 12,585.36
  4. Step 4: Simplify right side
    15,719.92x = 296,764,802.46
  5. Step 5: Solve for x
    x = 296,764,802.46/15,719.92
  6. Step 6: Final answer
    x = 18,878.26

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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.