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Finding the Fourth Proportional to 12,650.00, 17,456.93 and 6,985.10

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Solution

The fourth proportional to 12,650.00, 17,456.93 and 6,985.10 is: 9,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.00 : 17,456.93 = 6,985.10 : x
  2. Step 2: Convert to fraction form
    12,650.00/17,456.93 = 6,985.10/x
  3. Step 3: Cross multiply
    12,650.00x = 17,456.93 × 6,985.10
  4. Step 4: Simplify right side
    12,650.00x = 121,938,410.46
  5. Step 5: Solve for x
    x = 121,938,410.46/12,650.00
  6. Step 6: Final answer
    x = 9,639.40

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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.