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Finding the Fourth Proportional to 8,501.40, 11,726.10 and 8,345.88

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Solution

The fourth proportional to 8,501.40, 11,726.10 and 8,345.88 is: 11,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.40 : 11,726.10 = 8,345.88 : x
  2. Step 2: Convert to fraction form
    8,501.40/11,726.10 = 8,345.88/x
  3. Step 3: Cross multiply
    8,501.40x = 11,726.10 × 8,345.88
  4. Step 4: Simplify right side
    8,501.40x = 97,864,623.47
  5. Step 5: Solve for x
    x = 97,864,623.47/8,501.40
  6. Step 6: Final answer
    x = 11,511.59

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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.