Home / 13,471.21-18,570.96-9,479.92

Finding the Fourth Proportional to 13,471.21, 18,570.96 and 9,479.92

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Solution

The fourth proportional to 13,471.21, 18,570.96 and 9,479.92 is: 13,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.21 : 18,570.96 = 9,479.92 : x
  2. Step 2: Convert to fraction form
    13,471.21/18,570.96 = 9,479.92/x
  3. Step 3: Cross multiply
    13,471.21x = 18,570.96 × 9,479.92
  4. Step 4: Simplify right side
    13,471.21x = 176,051,215.12
  5. Step 5: Solve for x
    x = 176,051,215.12/13,471.21
  6. Step 6: Final answer
    x = 13,068.70

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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.