Home / 12,615.61-17,396.35-9,423.91

Finding the Fourth Proportional to 12,615.61, 17,396.35 and 9,423.91

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Solution

The fourth proportional to 12,615.61, 17,396.35 and 9,423.91 is: 12,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.61 : 17,396.35 = 9,423.91 : x
  2. Step 2: Convert to fraction form
    12,615.61/17,396.35 = 9,423.91/x
  3. Step 3: Cross multiply
    12,615.61x = 17,396.35 × 9,423.91
  4. Step 4: Simplify right side
    12,615.61x = 163,941,636.73
  5. Step 5: Solve for x
    x = 163,941,636.73/12,615.61
  6. Step 6: Final answer
    x = 12,995.14

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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.