Home / 13,288.05-18,344.07-9,061.07

Finding the Fourth Proportional to 13,288.05, 18,344.07 and 9,061.07

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Solution

The fourth proportional to 13,288.05, 18,344.07 and 9,061.07 is: 12,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.05 : 18,344.07 = 9,061.07 : x
  2. Step 2: Convert to fraction form
    13,288.05/18,344.07 = 9,061.07/x
  3. Step 3: Cross multiply
    13,288.05x = 18,344.07 × 9,061.07
  4. Step 4: Simplify right side
    13,288.05x = 166,216,810.63
  5. Step 5: Solve for x
    x = 166,216,810.63/13,288.05
  6. Step 6: Final answer
    x = 12,508.74

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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.