Home / 10,440.26-14,319.36-9,875.42

Finding the Fourth Proportional to 10,440.26, 14,319.36 and 9,875.42

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Solution

The fourth proportional to 10,440.26, 14,319.36 and 9,875.42 is: 13,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.26 : 14,319.36 = 9,875.42 : x
  2. Step 2: Convert to fraction form
    10,440.26/14,319.36 = 9,875.42/x
  3. Step 3: Cross multiply
    10,440.26x = 14,319.36 × 9,875.42
  4. Step 4: Simplify right side
    10,440.26x = 141,409,644.75
  5. Step 5: Solve for x
    x = 141,409,644.75/10,440.26
  6. Step 6: Final answer
    x = 13,544.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.