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Finding the Fourth Proportional to 13,267.76, 18,270.01 and 12,973.10

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Solution

The fourth proportional to 13,267.76, 18,270.01 and 12,973.10 is: 17,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.76 : 18,270.01 = 12,973.10 : x
  2. Step 2: Convert to fraction form
    13,267.76/18,270.01 = 12,973.10/x
  3. Step 3: Cross multiply
    13,267.76x = 18,270.01 × 12,973.10
  4. Step 4: Simplify right side
    13,267.76x = 237,018,650.77
  5. Step 5: Solve for x
    x = 237,018,650.77/13,267.76
  6. Step 6: Final answer
    x = 17,864.25

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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.