Home / 13,314.32-19,937.32-12,920.17

Finding the Fourth Proportional to 13,314.32, 19,937.32 and 12,920.17

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Solution

The fourth proportional to 13,314.32, 19,937.32 and 12,920.17 is: 19,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.32 : 19,937.32 = 12,920.17 : x
  2. Step 2: Convert to fraction form
    13,314.32/19,937.32 = 12,920.17/x
  3. Step 3: Cross multiply
    13,314.32x = 19,937.32 × 12,920.17
  4. Step 4: Simplify right side
    13,314.32x = 257,593,563.74
  5. Step 5: Solve for x
    x = 257,593,563.74/13,314.32
  6. Step 6: Final answer
    x = 19,347.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.