Home / 9,746.40-13,441.20-6,388

Finding the Fourth Proportional to 9,746.40, 13,441.20 and 6,388

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Solution

The fourth proportional to 9,746.40, 13,441.20 and 6,388 is: 8,809.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,746.40 : 13,441.20 = 6,388 : x
  2. Step 2: Convert to fraction form
    9,746.40/13,441.20 = 6,388/x
  3. Step 3: Cross multiply
    9,746.40x = 13,441.20 × 6,388
  4. Step 4: Simplify right side
    9,746.40x = 85,862,385.60
  5. Step 5: Solve for x
    x = 85,862,385.60/9,746.40
  6. Step 6: Final answer
    x = 8,809.65

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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.