Home / 10,159.90-15,239.85-4,312.41

Finding the Fourth Proportional to 10,159.90, 15,239.85 and 4,312.41

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Solution

The fourth proportional to 10,159.90, 15,239.85 and 4,312.41 is: 6,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.90 : 15,239.85 = 4,312.41 : x
  2. Step 2: Convert to fraction form
    10,159.90/15,239.85 = 4,312.41/x
  3. Step 3: Cross multiply
    10,159.90x = 15,239.85 × 4,312.41
  4. Step 4: Simplify right side
    10,159.90x = 65,720,408.22
  5. Step 5: Solve for x
    x = 65,720,408.22/10,159.90
  6. Step 6: Final answer
    x = 6,468.61

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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.