Home / 10,247.50-14,142.90-6,215.93

Finding the Fourth Proportional to 10,247.50, 14,142.90 and 6,215.93

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Solution

The fourth proportional to 10,247.50, 14,142.90 and 6,215.93 is: 8,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.50 : 14,142.90 = 6,215.93 : x
  2. Step 2: Convert to fraction form
    10,247.50/14,142.90 = 6,215.93/x
  3. Step 3: Cross multiply
    10,247.50x = 14,142.90 × 6,215.93
  4. Step 4: Simplify right side
    10,247.50x = 87,911,276.40
  5. Step 5: Solve for x
    x = 87,911,276.40/10,247.50
  6. Step 6: Final answer
    x = 8,578.80

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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.