Home / 10,973.88-15,147-6,499.17

Finding the Fourth Proportional to 10,973.88, 15,147 and 6,499.17

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Solution

The fourth proportional to 10,973.88, 15,147 and 6,499.17 is: 8,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,973.88 : 15,147 = 6,499.17 : x
  2. Step 2: Convert to fraction form
    10,973.88/15,147 = 6,499.17/x
  3. Step 3: Cross multiply
    10,973.88x = 15,147 × 6,499.17
  4. Step 4: Simplify right side
    10,973.88x = 98,442,927.99
  5. Step 5: Solve for x
    x = 98,442,927.99/10,973.88
  6. Step 6: Final answer
    x = 8,970.66

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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.