Home / 10,321.60-14,238.48-6,538.40

Finding the Fourth Proportional to 10,321.60, 14,238.48 and 6,538.40

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Solution

The fourth proportional to 10,321.60, 14,238.48 and 6,538.40 is: 9,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.60 : 14,238.48 = 6,538.40 : x
  2. Step 2: Convert to fraction form
    10,321.60/14,238.48 = 6,538.40/x
  3. Step 3: Cross multiply
    10,321.60x = 14,238.48 × 6,538.40
  4. Step 4: Simplify right side
    10,321.60x = 93,096,877.63
  5. Step 5: Solve for x
    x = 93,096,877.63/10,321.60
  6. Step 6: Final answer
    x = 9,019.62

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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.