Home / 13,258.02-18,295.61-7,208.22

Finding the Fourth Proportional to 13,258.02, 18,295.61 and 7,208.22

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Solution

The fourth proportional to 13,258.02, 18,295.61 and 7,208.22 is: 9,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.02 : 18,295.61 = 7,208.22 : x
  2. Step 2: Convert to fraction form
    13,258.02/18,295.61 = 7,208.22/x
  3. Step 3: Cross multiply
    13,258.02x = 18,295.61 × 7,208.22
  4. Step 4: Simplify right side
    13,258.02x = 131,878,781.91
  5. Step 5: Solve for x
    x = 131,878,781.91/13,258.02
  6. Step 6: Final answer
    x = 9,947.10

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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.