Home / 15,066.32-20,785.20-10,342.40

Finding the Fourth Proportional to 15,066.32, 20,785.20 and 10,342.40

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Solution

The fourth proportional to 15,066.32, 20,785.20 and 10,342.40 is: 14,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.32 : 20,785.20 = 10,342.40 : x
  2. Step 2: Convert to fraction form
    15,066.32/20,785.20 = 10,342.40/x
  3. Step 3: Cross multiply
    15,066.32x = 20,785.20 × 10,342.40
  4. Step 4: Simplify right side
    15,066.32x = 214,968,852.48
  5. Step 5: Solve for x
    x = 214,968,852.48/15,066.32
  6. Step 6: Final answer
    x = 14,268.17

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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.