Home / 15,297.02-21,112.34-9,009.40

Finding the Fourth Proportional to 15,297.02, 21,112.34 and 9,009.40

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Solution

The fourth proportional to 15,297.02, 21,112.34 and 9,009.40 is: 12,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.02 : 21,112.34 = 9,009.40 : x
  2. Step 2: Convert to fraction form
    15,297.02/21,112.34 = 9,009.40/x
  3. Step 3: Cross multiply
    15,297.02x = 21,112.34 × 9,009.40
  4. Step 4: Simplify right side
    15,297.02x = 190,209,516.00
  5. Step 5: Solve for x
    x = 190,209,516.00/15,297.02
  6. Step 6: Final answer
    x = 12,434.42

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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.