Home / 12,485.72-17,248.02-9,984.44

Finding the Fourth Proportional to 12,485.72, 17,248.02 and 9,984.44

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Solution

The fourth proportional to 12,485.72, 17,248.02 and 9,984.44 is: 13,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.72 : 17,248.02 = 9,984.44 : x
  2. Step 2: Convert to fraction form
    12,485.72/17,248.02 = 9,984.44/x
  3. Step 3: Cross multiply
    12,485.72x = 17,248.02 × 9,984.44
  4. Step 4: Simplify right side
    12,485.72x = 172,211,820.81
  5. Step 5: Solve for x
    x = 172,211,820.81/12,485.72
  6. Step 6: Final answer
    x = 13,792.70

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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.