Home / 10,628.32-14,663.12-6,647.92

Finding the Fourth Proportional to 10,628.32, 14,663.12 and 6,647.92

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Solution

The fourth proportional to 10,628.32, 14,663.12 and 6,647.92 is: 9,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.32 : 14,663.12 = 6,647.92 : x
  2. Step 2: Convert to fraction form
    10,628.32/14,663.12 = 6,647.92/x
  3. Step 3: Cross multiply
    10,628.32x = 14,663.12 × 6,647.92
  4. Step 4: Simplify right side
    10,628.32x = 97,479,248.71
  5. Step 5: Solve for x
    x = 97,479,248.71/10,628.32
  6. Step 6: Final answer
    x = 9,171.65

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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.