Home / 10,215.48-14,093.28-6,437.64

Finding the Fourth Proportional to 10,215.48, 14,093.28 and 6,437.64

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Solution

The fourth proportional to 10,215.48, 14,093.28 and 6,437.64 is: 8,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.48 : 14,093.28 = 6,437.64 : x
  2. Step 2: Convert to fraction form
    10,215.48/14,093.28 = 6,437.64/x
  3. Step 3: Cross multiply
    10,215.48x = 14,093.28 × 6,437.64
  4. Step 4: Simplify right side
    10,215.48x = 90,727,463.06
  5. Step 5: Solve for x
    x = 90,727,463.06/10,215.48
  6. Step 6: Final answer
    x = 8,881.37

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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.