Home / 10,124.20-13,985.02-9,181.06

Finding the Fourth Proportional to 10,124.20, 13,985.02 and 9,181.06

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Solution

The fourth proportional to 10,124.20, 13,985.02 and 9,181.06 is: 12,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.20 : 13,985.02 = 9,181.06 : x
  2. Step 2: Convert to fraction form
    10,124.20/13,985.02 = 9,181.06/x
  3. Step 3: Cross multiply
    10,124.20x = 13,985.02 × 9,181.06
  4. Step 4: Simplify right side
    10,124.20x = 128,397,284.23
  5. Step 5: Solve for x
    x = 128,397,284.23/10,124.20
  6. Step 6: Final answer
    x = 12,682.21

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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.