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Finding the Fourth Proportional to 11,487, 15,852.12 and 7,514.76

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Solution

The fourth proportional to 11,487, 15,852.12 and 7,514.76 is: 10,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487 : 15,852.12 = 7,514.76 : x
  2. Step 2: Convert to fraction form
    11,487/15,852.12 = 7,514.76/x
  3. Step 3: Cross multiply
    11,487x = 15,852.12 × 7,514.76
  4. Step 4: Simplify right side
    11,487x = 119,124,877.29
  5. Step 5: Solve for x
    x = 119,124,877.29/11,487
  6. Step 6: Final answer
    x = 10,370.41

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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.