Home / 13,352.76-18,426.96-7,384.32

Finding the Fourth Proportional to 13,352.76, 18,426.96 and 7,384.32

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Solution

The fourth proportional to 13,352.76, 18,426.96 and 7,384.32 is: 10,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.76 : 18,426.96 = 7,384.32 : x
  2. Step 2: Convert to fraction form
    13,352.76/18,426.96 = 7,384.32/x
  3. Step 3: Cross multiply
    13,352.76x = 18,426.96 × 7,384.32
  4. Step 4: Simplify right side
    13,352.76x = 136,070,569.27
  5. Step 5: Solve for x
    x = 136,070,569.27/13,352.76
  6. Step 6: Final answer
    x = 10,190.45

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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.