Home / 13,528.16-20,291.47-3,666.71

Finding the Fourth Proportional to 13,528.16, 20,291.47 and 3,666.71

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Solution

The fourth proportional to 13,528.16, 20,291.47 and 3,666.71 is: 5,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.16 : 20,291.47 = 3,666.71 : x
  2. Step 2: Convert to fraction form
    13,528.16/20,291.47 = 3,666.71/x
  3. Step 3: Cross multiply
    13,528.16x = 20,291.47 × 3,666.71
  4. Step 4: Simplify right side
    13,528.16x = 74,402,825.34
  5. Step 5: Solve for x
    x = 74,402,825.34/13,528.16
  6. Step 6: Final answer
    x = 5,499.85

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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.