Home / 13,541.57-20,312.77-3,681.06

Finding the Fourth Proportional to 13,541.57, 20,312.77 and 3,681.06

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Solution

The fourth proportional to 13,541.57, 20,312.77 and 3,681.06 is: 5,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.57 : 20,312.77 = 3,681.06 : x
  2. Step 2: Convert to fraction form
    13,541.57/20,312.77 = 3,681.06/x
  3. Step 3: Cross multiply
    13,541.57x = 20,312.77 × 3,681.06
  4. Step 4: Simplify right side
    13,541.57x = 74,772,525.14
  5. Step 5: Solve for x
    x = 74,772,525.14/13,541.57
  6. Step 6: Final answer
    x = 5,521.70

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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.