Home / 9,030.02-13,612.56-8,427.92

Finding the Fourth Proportional to 9,030.02, 13,612.56 and 8,427.92

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Solution

The fourth proportional to 9,030.02, 13,612.56 and 8,427.92 is: 12,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,030.02 : 13,612.56 = 8,427.92 : x
  2. Step 2: Convert to fraction form
    9,030.02/13,612.56 = 8,427.92/x
  3. Step 3: Cross multiply
    9,030.02x = 13,612.56 × 8,427.92
  4. Step 4: Simplify right side
    9,030.02x = 114,725,467.01
  5. Step 5: Solve for x
    x = 114,725,467.01/9,030.02
  6. Step 6: Final answer
    x = 12,704.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.