Home / 13,246.34-18,280.35-7,278.19

Finding the Fourth Proportional to 13,246.34, 18,280.35 and 7,278.19

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Solution

The fourth proportional to 13,246.34, 18,280.35 and 7,278.19 is: 10,044.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.34 : 18,280.35 = 7,278.19 : x
  2. Step 2: Convert to fraction form
    13,246.34/18,280.35 = 7,278.19/x
  3. Step 3: Cross multiply
    13,246.34x = 18,280.35 × 7,278.19
  4. Step 4: Simplify right side
    13,246.34x = 133,047,814.87
  5. Step 5: Solve for x
    x = 133,047,814.87/13,246.34
  6. Step 6: Final answer
    x = 10,044.12

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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.