Home / 13,280.64-18,327.27-7,312.26

Finding the Fourth Proportional to 13,280.64, 18,327.27 and 7,312.26

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Solution

The fourth proportional to 13,280.64, 18,327.27 and 7,312.26 is: 10,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.64 : 18,327.27 = 7,312.26 : x
  2. Step 2: Convert to fraction form
    13,280.64/18,327.27 = 7,312.26/x
  3. Step 3: Cross multiply
    13,280.64x = 18,327.27 × 7,312.26
  4. Step 4: Simplify right side
    13,280.64x = 134,013,763.33
  5. Step 5: Solve for x
    x = 134,013,763.33/13,280.64
  6. Step 6: Final answer
    x = 10,090.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.