Home / 10,090.90-13,925.77-6,312.86

Finding the Fourth Proportional to 10,090.90, 13,925.77 and 6,312.86

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Solution

The fourth proportional to 10,090.90, 13,925.77 and 6,312.86 is: 8,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.90 : 13,925.77 = 6,312.86 : x
  2. Step 2: Convert to fraction form
    10,090.90/13,925.77 = 6,312.86/x
  3. Step 3: Cross multiply
    10,090.90x = 13,925.77 × 6,312.86
  4. Step 4: Simplify right side
    10,090.90x = 87,911,335.21
  5. Step 5: Solve for x
    x = 87,911,335.21/10,090.90
  6. Step 6: Final answer
    x = 8,711.94

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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.