Home / 15,631.36-23,402.88-12,495.36

Finding the Fourth Proportional to 15,631.36, 23,402.88 and 12,495.36

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Solution

The fourth proportional to 15,631.36, 23,402.88 and 12,495.36 is: 18,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.36 : 23,402.88 = 12,495.36 : x
  2. Step 2: Convert to fraction form
    15,631.36/23,402.88 = 12,495.36/x
  3. Step 3: Cross multiply
    15,631.36x = 23,402.88 × 12,495.36
  4. Step 4: Simplify right side
    15,631.36x = 292,427,410.64
  5. Step 5: Solve for x
    x = 292,427,410.64/15,631.36
  6. Step 6: Final answer
    x = 18,707.74

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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.