Home / 13,750.64-20,585.16-9,061.80

Finding the Fourth Proportional to 13,750.64, 20,585.16 and 9,061.80

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Solution

The fourth proportional to 13,750.64, 20,585.16 and 9,061.80 is: 13,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.64 : 20,585.16 = 9,061.80 : x
  2. Step 2: Convert to fraction form
    13,750.64/20,585.16 = 9,061.80/x
  3. Step 3: Cross multiply
    13,750.64x = 20,585.16 × 9,061.80
  4. Step 4: Simplify right side
    13,750.64x = 186,538,602.89
  5. Step 5: Solve for x
    x = 186,538,602.89/13,750.64
  6. Step 6: Final answer
    x = 13,565.81

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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.