Home / 10,387.79-14,333.22-5,911.28

Finding the Fourth Proportional to 10,387.79, 14,333.22 and 5,911.28

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Solution

The fourth proportional to 10,387.79, 14,333.22 and 5,911.28 is: 8,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.79 : 14,333.22 = 5,911.28 : x
  2. Step 2: Convert to fraction form
    10,387.79/14,333.22 = 5,911.28/x
  3. Step 3: Cross multiply
    10,387.79x = 14,333.22 × 5,911.28
  4. Step 4: Simplify right side
    10,387.79x = 84,727,605.06
  5. Step 5: Solve for x
    x = 84,727,605.06/10,387.79
  6. Step 6: Final answer
    x = 8,156.46

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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.