Home / 13,802.30-20,689.08-6,400.67

Finding the Fourth Proportional to 13,802.30, 20,689.08 and 6,400.67

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Solution

The fourth proportional to 13,802.30, 20,689.08 and 6,400.67 is: 9,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.30 : 20,689.08 = 6,400.67 : x
  2. Step 2: Convert to fraction form
    13,802.30/20,689.08 = 6,400.67/x
  3. Step 3: Cross multiply
    13,802.30x = 20,689.08 × 6,400.67
  4. Step 4: Simplify right side
    13,802.30x = 132,423,973.68
  5. Step 5: Solve for x
    x = 132,423,973.68/13,802.30
  6. Step 6: Final answer
    x = 9,594.34

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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.