Home / 10,785.02-14,880.36-6,309.86

Finding the Fourth Proportional to 10,785.02, 14,880.36 and 6,309.86

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Solution

The fourth proportional to 10,785.02, 14,880.36 and 6,309.86 is: 8,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.02 : 14,880.36 = 6,309.86 : x
  2. Step 2: Convert to fraction form
    10,785.02/14,880.36 = 6,309.86/x
  3. Step 3: Cross multiply
    10,785.02x = 14,880.36 × 6,309.86
  4. Step 4: Simplify right side
    10,785.02x = 93,892,988.35
  5. Step 5: Solve for x
    x = 93,892,988.35/10,785.02
  6. Step 6: Final answer
    x = 8,705.87

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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.