Home / 13,303.40-18,358.82-7,335.28

Finding the Fourth Proportional to 13,303.40, 18,358.82 and 7,335.28

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Solution

The fourth proportional to 13,303.40, 18,358.82 and 7,335.28 is: 10,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.40 : 18,358.82 = 7,335.28 : x
  2. Step 2: Convert to fraction form
    13,303.40/18,358.82 = 7,335.28/x
  3. Step 3: Cross multiply
    13,303.40x = 18,358.82 × 7,335.28
  4. Step 4: Simplify right side
    13,303.40x = 134,667,085.17
  5. Step 5: Solve for x
    x = 134,667,085.17/13,303.40
  6. Step 6: Final answer
    x = 10,122.76

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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.