Home / 13,541.40-20,312.67-4,776.36

Finding the Fourth Proportional to 13,541.40, 20,312.67 and 4,776.36

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Solution

The fourth proportional to 13,541.40, 20,312.67 and 4,776.36 is: 7,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.40 : 20,312.67 = 4,776.36 : x
  2. Step 2: Convert to fraction form
    13,541.40/20,312.67 = 4,776.36/x
  3. Step 3: Cross multiply
    13,541.40x = 20,312.67 × 4,776.36
  4. Step 4: Simplify right side
    13,541.40x = 97,020,624.48
  5. Step 5: Solve for x
    x = 97,020,624.48/13,541.40
  6. Step 6: Final answer
    x = 7,164.74

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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.