Home / 10,388.47-14,337.93-6,139.36

Finding the Fourth Proportional to 10,388.47, 14,337.93 and 6,139.36

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Solution

The fourth proportional to 10,388.47, 14,337.93 and 6,139.36 is: 8,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.47 : 14,337.93 = 6,139.36 : x
  2. Step 2: Convert to fraction form
    10,388.47/14,337.93 = 6,139.36/x
  3. Step 3: Cross multiply
    10,388.47x = 14,337.93 × 6,139.36
  4. Step 4: Simplify right side
    10,388.47x = 88,025,713.92
  5. Step 5: Solve for x
    x = 88,025,713.92/10,388.47
  6. Step 6: Final answer
    x = 8,473.41

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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.