Home / 13,125.52-18,113.64-7,460.16

Finding the Fourth Proportional to 13,125.52, 18,113.64 and 7,460.16

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Solution

The fourth proportional to 13,125.52, 18,113.64 and 7,460.16 is: 10,295.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.52 : 18,113.64 = 7,460.16 : x
  2. Step 2: Convert to fraction form
    13,125.52/18,113.64 = 7,460.16/x
  3. Step 3: Cross multiply
    13,125.52x = 18,113.64 × 7,460.16
  4. Step 4: Simplify right side
    13,125.52x = 135,130,652.58
  5. Step 5: Solve for x
    x = 135,130,652.58/13,125.52
  6. Step 6: Final answer
    x = 10,295.26

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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.