Home / 14,315.64-21,479.48-7,746.36

Finding the Fourth Proportional to 14,315.64, 21,479.48 and 7,746.36

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Solution

The fourth proportional to 14,315.64, 21,479.48 and 7,746.36 is: 11,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.64 : 21,479.48 = 7,746.36 : x
  2. Step 2: Convert to fraction form
    14,315.64/21,479.48 = 7,746.36/x
  3. Step 3: Cross multiply
    14,315.64x = 21,479.48 × 7,746.36
  4. Step 4: Simplify right side
    14,315.64x = 166,387,784.69
  5. Step 5: Solve for x
    x = 166,387,784.69/14,315.64
  6. Step 6: Final answer
    x = 11,622.80

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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.