Home / 10,387.48-15,571.63-4,145.98

Finding the Fourth Proportional to 10,387.48, 15,571.63 and 4,145.98

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Solution

The fourth proportional to 10,387.48, 15,571.63 and 4,145.98 is: 6,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.48 : 15,571.63 = 4,145.98 : x
  2. Step 2: Convert to fraction form
    10,387.48/15,571.63 = 4,145.98/x
  3. Step 3: Cross multiply
    10,387.48x = 15,571.63 × 4,145.98
  4. Step 4: Simplify right side
    10,387.48x = 64,559,594.88
  5. Step 5: Solve for x
    x = 64,559,594.88/10,387.48
  6. Step 6: Final answer
    x = 6,215.13

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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.