Home / 13,353.63-18,426.60-7,384.35

Finding the Fourth Proportional to 13,353.63, 18,426.60 and 7,384.35

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Solution

The fourth proportional to 13,353.63, 18,426.60 and 7,384.35 is: 10,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.63 : 18,426.60 = 7,384.35 : x
  2. Step 2: Convert to fraction form
    13,353.63/18,426.60 = 7,384.35/x
  3. Step 3: Cross multiply
    13,353.63x = 18,426.60 × 7,384.35
  4. Step 4: Simplify right side
    13,353.63x = 136,068,463.71
  5. Step 5: Solve for x
    x = 136,068,463.71/13,353.63
  6. Step 6: Final answer
    x = 10,189.62

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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.