Home / 13,703.04-18,908.16-8,322.68

Finding the Fourth Proportional to 13,703.04, 18,908.16 and 8,322.68

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Solution

The fourth proportional to 13,703.04, 18,908.16 and 8,322.68 is: 11,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.04 : 18,908.16 = 8,322.68 : x
  2. Step 2: Convert to fraction form
    13,703.04/18,908.16 = 8,322.68/x
  3. Step 3: Cross multiply
    13,703.04x = 18,908.16 × 8,322.68
  4. Step 4: Simplify right side
    13,703.04x = 157,366,565.07
  5. Step 5: Solve for x
    x = 157,366,565.07/13,703.04
  6. Step 6: Final answer
    x = 11,484.06

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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.