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Finding the Fourth Proportional to 12,599.72, 17,386.02 and 7,009.64

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Solution

The fourth proportional to 12,599.72, 17,386.02 and 7,009.64 is: 9,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.72 : 17,386.02 = 7,009.64 : x
  2. Step 2: Convert to fraction form
    12,599.72/17,386.02 = 7,009.64/x
  3. Step 3: Cross multiply
    12,599.72x = 17,386.02 × 7,009.64
  4. Step 4: Simplify right side
    12,599.72x = 121,869,741.23
  5. Step 5: Solve for x
    x = 121,869,741.23/12,599.72
  6. Step 6: Final answer
    x = 9,672.42

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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.