Home / 10,090.17-13,931.30-6,314.86

Finding the Fourth Proportional to 10,090.17, 13,931.30 and 6,314.86

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Solution

The fourth proportional to 10,090.17, 13,931.30 and 6,314.86 is: 8,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.17 : 13,931.30 = 6,314.86 : x
  2. Step 2: Convert to fraction form
    10,090.17/13,931.30 = 6,314.86/x
  3. Step 3: Cross multiply
    10,090.17x = 13,931.30 × 6,314.86
  4. Step 4: Simplify right side
    10,090.17x = 87,974,209.12
  5. Step 5: Solve for x
    x = 87,974,209.12/10,090.17
  6. Step 6: Final answer
    x = 8,718.80

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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.