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Finding the Fourth Proportional to 10,859.79, 14,988.12 and 6,881.27

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Solution

The fourth proportional to 10,859.79, 14,988.12 and 6,881.27 is: 9,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.79 : 14,988.12 = 6,881.27 : x
  2. Step 2: Convert to fraction form
    10,859.79/14,988.12 = 6,881.27/x
  3. Step 3: Cross multiply
    10,859.79x = 14,988.12 × 6,881.27
  4. Step 4: Simplify right side
    10,859.79x = 103,137,225.57
  5. Step 5: Solve for x
    x = 103,137,225.57/10,859.79
  6. Step 6: Final answer
    x = 9,497.17

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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.