Home / 13,446.13-18,547.95-11,164.56

Finding the Fourth Proportional to 13,446.13, 18,547.95 and 11,164.56

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Solution

The fourth proportional to 13,446.13, 18,547.95 and 11,164.56 is: 15,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.13 : 18,547.95 = 11,164.56 : x
  2. Step 2: Convert to fraction form
    13,446.13/18,547.95 = 11,164.56/x
  3. Step 3: Cross multiply
    13,446.13x = 18,547.95 × 11,164.56
  4. Step 4: Simplify right side
    13,446.13x = 207,079,700.65
  5. Step 5: Solve for x
    x = 207,079,700.65/13,446.13
  6. Step 6: Final answer
    x = 15,400.69

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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.