Home / 10,911.46-15,056.16-6,130.49

Finding the Fourth Proportional to 10,911.46, 15,056.16 and 6,130.49

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Solution

The fourth proportional to 10,911.46, 15,056.16 and 6,130.49 is: 8,459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.46 : 15,056.16 = 6,130.49 : x
  2. Step 2: Convert to fraction form
    10,911.46/15,056.16 = 6,130.49/x
  3. Step 3: Cross multiply
    10,911.46x = 15,056.16 × 6,130.49
  4. Step 4: Simplify right side
    10,911.46x = 92,301,638.32
  5. Step 5: Solve for x
    x = 92,301,638.32/10,911.46
  6. Step 6: Final answer
    x = 8,459.15

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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.