Home / 10,907.08-15,049.95-6,430.21

Finding the Fourth Proportional to 10,907.08, 15,049.95 and 6,430.21

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Solution

The fourth proportional to 10,907.08, 15,049.95 and 6,430.21 is: 8,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.08 : 15,049.95 = 6,430.21 : x
  2. Step 2: Convert to fraction form
    10,907.08/15,049.95 = 6,430.21/x
  3. Step 3: Cross multiply
    10,907.08x = 15,049.95 × 6,430.21
  4. Step 4: Simplify right side
    10,907.08x = 96,774,338.99
  5. Step 5: Solve for x
    x = 96,774,338.99/10,907.08
  6. Step 6: Final answer
    x = 8,872.62

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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.