Home / 13,155.66-19,743.21-9,875.16

Finding the Fourth Proportional to 13,155.66, 19,743.21 and 9,875.16

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Solution

The fourth proportional to 13,155.66, 19,743.21 and 9,875.16 is: 14,820.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.66 : 19,743.21 = 9,875.16 : x
  2. Step 2: Convert to fraction form
    13,155.66/19,743.21 = 9,875.16/x
  3. Step 3: Cross multiply
    13,155.66x = 19,743.21 × 9,875.16
  4. Step 4: Simplify right side
    13,155.66x = 194,967,357.66
  5. Step 5: Solve for x
    x = 194,967,357.66/13,155.66
  6. Step 6: Final answer
    x = 14,820.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.