Home / 15,308.07-21,125.12-8,934.93

Finding the Fourth Proportional to 15,308.07, 21,125.12 and 8,934.93

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Solution

The fourth proportional to 15,308.07, 21,125.12 and 8,934.93 is: 12,330.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.07 : 21,125.12 = 8,934.93 : x
  2. Step 2: Convert to fraction form
    15,308.07/21,125.12 = 8,934.93/x
  3. Step 3: Cross multiply
    15,308.07x = 21,125.12 × 8,934.93
  4. Step 4: Simplify right side
    15,308.07x = 188,751,423.77
  5. Step 5: Solve for x
    x = 188,751,423.77/15,308.07
  6. Step 6: Final answer
    x = 12,330.19

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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.