Home / 13,535.10-20,302.65-5,742.90

Finding the Fourth Proportional to 13,535.10, 20,302.65 and 5,742.90

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Solution

The fourth proportional to 13,535.10, 20,302.65 and 5,742.90 is: 8,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.10 : 20,302.65 = 5,742.90 : x
  2. Step 2: Convert to fraction form
    13,535.10/20,302.65 = 5,742.90/x
  3. Step 3: Cross multiply
    13,535.10x = 20,302.65 × 5,742.90
  4. Step 4: Simplify right side
    13,535.10x = 116,596,088.69
  5. Step 5: Solve for x
    x = 116,596,088.69/13,535.10
  6. Step 6: Final answer
    x = 8,614.35

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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.