Home / 12,345.31-18,506.98-4,552.30

Finding the Fourth Proportional to 12,345.31, 18,506.98 and 4,552.30

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Solution

The fourth proportional to 12,345.31, 18,506.98 and 4,552.30 is: 6,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.31 : 18,506.98 = 4,552.30 : x
  2. Step 2: Convert to fraction form
    12,345.31/18,506.98 = 4,552.30/x
  3. Step 3: Cross multiply
    12,345.31x = 18,506.98 × 4,552.30
  4. Step 4: Simplify right side
    12,345.31x = 84,249,353.88
  5. Step 5: Solve for x
    x = 84,249,353.88/12,345.31
  6. Step 6: Final answer
    x = 6,824.40

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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.