Home / 13,631.13-18,786.47-10,088.19

Finding the Fourth Proportional to 13,631.13, 18,786.47 and 10,088.19

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Solution

The fourth proportional to 13,631.13, 18,786.47 and 10,088.19 is: 13,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.13 : 18,786.47 = 10,088.19 : x
  2. Step 2: Convert to fraction form
    13,631.13/18,786.47 = 10,088.19/x
  3. Step 3: Cross multiply
    13,631.13x = 18,786.47 × 10,088.19
  4. Step 4: Simplify right side
    13,631.13x = 189,521,428.35
  5. Step 5: Solve for x
    x = 189,521,428.35/13,631.13
  6. Step 6: Final answer
    x = 13,903.57

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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.