Home / 11,152.10-15,390.09-6,116.30

Finding the Fourth Proportional to 11,152.10, 15,390.09 and 6,116.30

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Solution

The fourth proportional to 11,152.10, 15,390.09 and 6,116.30 is: 8,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.10 : 15,390.09 = 6,116.30 : x
  2. Step 2: Convert to fraction form
    11,152.10/15,390.09 = 6,116.30/x
  3. Step 3: Cross multiply
    11,152.10x = 15,390.09 × 6,116.30
  4. Step 4: Simplify right side
    11,152.10x = 94,130,407.47
  5. Step 5: Solve for x
    x = 94,130,407.47/11,152.10
  6. Step 6: Final answer
    x = 8,440.60

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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.