Home / 13,543.05-20,312.73-4,776.81

Finding the Fourth Proportional to 13,543.05, 20,312.73 and 4,776.81

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Solution

The fourth proportional to 13,543.05, 20,312.73 and 4,776.81 is: 7,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.05 : 20,312.73 = 4,776.81 : x
  2. Step 2: Convert to fraction form
    13,543.05/20,312.73 = 4,776.81/x
  3. Step 3: Cross multiply
    13,543.05x = 20,312.73 × 4,776.81
  4. Step 4: Simplify right side
    13,543.05x = 97,030,051.79
  5. Step 5: Solve for x
    x = 97,030,051.79/13,543.05
  6. Step 6: Final answer
    x = 7,164.56

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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.