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Finding the Fourth Proportional to 12,668.96, 17,484.64 and 10,540.74

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Solution

The fourth proportional to 12,668.96, 17,484.64 and 10,540.74 is: 14,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.96 : 17,484.64 = 10,540.74 : x
  2. Step 2: Convert to fraction form
    12,668.96/17,484.64 = 10,540.74/x
  3. Step 3: Cross multiply
    12,668.96x = 17,484.64 × 10,540.74
  4. Step 4: Simplify right side
    12,668.96x = 184,301,044.23
  5. Step 5: Solve for x
    x = 184,301,044.23/12,668.96
  6. Step 6: Final answer
    x = 14,547.45

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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.