Home / 13,934.70-19,219.10-9,685.67

Finding the Fourth Proportional to 13,934.70, 19,219.10 and 9,685.67

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Solution

The fourth proportional to 13,934.70, 19,219.10 and 9,685.67 is: 13,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.70 : 19,219.10 = 9,685.67 : x
  2. Step 2: Convert to fraction form
    13,934.70/19,219.10 = 9,685.67/x
  3. Step 3: Cross multiply
    13,934.70x = 19,219.10 × 9,685.67
  4. Step 4: Simplify right side
    13,934.70x = 186,149,715.77
  5. Step 5: Solve for x
    x = 186,149,715.77/13,934.70
  6. Step 6: Final answer
    x = 13,358.72

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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.