Home / 15,446.66-21,308.54-9,771.84

Finding the Fourth Proportional to 15,446.66, 21,308.54 and 9,771.84

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Solution

The fourth proportional to 15,446.66, 21,308.54 and 9,771.84 is: 13,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.66 : 21,308.54 = 9,771.84 : x
  2. Step 2: Convert to fraction form
    15,446.66/21,308.54 = 9,771.84/x
  3. Step 3: Cross multiply
    15,446.66x = 21,308.54 × 9,771.84
  4. Step 4: Simplify right side
    15,446.66x = 208,223,594.65
  5. Step 5: Solve for x
    x = 208,223,594.65/15,446.66
  6. Step 6: Final answer
    x = 13,480.17

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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.