Home / 13,298.60-18,353.12-7,331.36

Finding the Fourth Proportional to 13,298.60, 18,353.12 and 7,331.36

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Solution

The fourth proportional to 13,298.60, 18,353.12 and 7,331.36 is: 10,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.60 : 18,353.12 = 7,331.36 : x
  2. Step 2: Convert to fraction form
    13,298.60/18,353.12 = 7,331.36/x
  3. Step 3: Cross multiply
    13,298.60x = 18,353.12 × 7,331.36
  4. Step 4: Simplify right side
    13,298.60x = 134,553,329.84
  5. Step 5: Solve for x
    x = 134,553,329.84/13,298.60
  6. Step 6: Final answer
    x = 10,117.86

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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.