Home / 14,104.79-19,459.40-8,439.67

Finding the Fourth Proportional to 14,104.79, 19,459.40 and 8,439.67

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Solution

The fourth proportional to 14,104.79, 19,459.40 and 8,439.67 is: 11,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.79 : 19,459.40 = 8,439.67 : x
  2. Step 2: Convert to fraction form
    14,104.79/19,459.40 = 8,439.67/x
  3. Step 3: Cross multiply
    14,104.79x = 19,459.40 × 8,439.67
  4. Step 4: Simplify right side
    14,104.79x = 164,230,914.40
  5. Step 5: Solve for x
    x = 164,230,914.40/14,104.79
  6. Step 6: Final answer
    x = 11,643.63

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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.