Home / 13,195.02-18,210.84-7,528.46

Finding the Fourth Proportional to 13,195.02, 18,210.84 and 7,528.46

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Solution

The fourth proportional to 13,195.02, 18,210.84 and 7,528.46 is: 10,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.02 : 18,210.84 = 7,528.46 : x
  2. Step 2: Convert to fraction form
    13,195.02/18,210.84 = 7,528.46/x
  3. Step 3: Cross multiply
    13,195.02x = 18,210.84 × 7,528.46
  4. Step 4: Simplify right side
    13,195.02x = 137,099,580.51
  5. Step 5: Solve for x
    x = 137,099,580.51/13,195.02
  6. Step 6: Final answer
    x = 10,390.25

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Half scale
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Double scale
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Similar ratio
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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.