Home / 15,281.02-21,084.60-9,983.62

Finding the Fourth Proportional to 15,281.02, 21,084.60 and 9,983.62

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Solution

The fourth proportional to 15,281.02, 21,084.60 and 9,983.62 is: 13,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.02 : 21,084.60 = 9,983.62 : x
  2. Step 2: Convert to fraction form
    15,281.02/21,084.60 = 9,983.62/x
  3. Step 3: Cross multiply
    15,281.02x = 21,084.60 × 9,983.62
  4. Step 4: Simplify right side
    15,281.02x = 210,500,634.25
  5. Step 5: Solve for x
    x = 210,500,634.25/15,281.02
  6. Step 6: Final answer
    x = 13,775.30

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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.