Home / 10,350.61-15,478.22-7,687.23

Finding the Fourth Proportional to 10,350.61, 15,478.22 and 7,687.23

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Solution

The fourth proportional to 10,350.61, 15,478.22 and 7,687.23 is: 11,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,350.61 : 15,478.22 = 7,687.23 : x
  2. Step 2: Convert to fraction form
    10,350.61/15,478.22 = 7,687.23/x
  3. Step 3: Cross multiply
    10,350.61x = 15,478.22 × 7,687.23
  4. Step 4: Simplify right side
    10,350.61x = 118,984,598.31
  5. Step 5: Solve for x
    x = 118,984,598.31/10,350.61
  6. Step 6: Final answer
    x = 11,495.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.