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Finding the Fourth Proportional to 8,598.30, 12,897.51 and 8,178.58

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Solution

The fourth proportional to 8,598.30, 12,897.51 and 8,178.58 is: 12,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,598.30 : 12,897.51 = 8,178.58 : x
  2. Step 2: Convert to fraction form
    8,598.30/12,897.51 = 8,178.58/x
  3. Step 3: Cross multiply
    8,598.30x = 12,897.51 × 8,178.58
  4. Step 4: Simplify right side
    8,598.30x = 105,483,317.34
  5. Step 5: Solve for x
    x = 105,483,317.34/8,598.30
  6. Step 6: Final answer
    x = 12,267.93

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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.