Home / 15,312.46-21,131.94-8,599.18

Finding the Fourth Proportional to 15,312.46, 21,131.94 and 8,599.18

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Solution

The fourth proportional to 15,312.46, 21,131.94 and 8,599.18 is: 11,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.46 : 21,131.94 = 8,599.18 : x
  2. Step 2: Convert to fraction form
    15,312.46/21,131.94 = 8,599.18/x
  3. Step 3: Cross multiply
    15,312.46x = 21,131.94 × 8,599.18
  4. Step 4: Simplify right side
    15,312.46x = 181,717,355.81
  5. Step 5: Solve for x
    x = 181,717,355.81/15,312.46
  6. Step 6: Final answer
    x = 11,867.29

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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.