Home / 13,442.76-18,558.72-8,974.08

Finding the Fourth Proportional to 13,442.76, 18,558.72 and 8,974.08

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Solution

The fourth proportional to 13,442.76, 18,558.72 and 8,974.08 is: 12,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.76 : 18,558.72 = 8,974.08 : x
  2. Step 2: Convert to fraction form
    13,442.76/18,558.72 = 8,974.08/x
  3. Step 3: Cross multiply
    13,442.76x = 18,558.72 × 8,974.08
  4. Step 4: Simplify right side
    13,442.76x = 166,547,437.98
  5. Step 5: Solve for x
    x = 166,547,437.98/13,442.76
  6. Step 6: Final answer
    x = 12,389.38

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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.