Home / 15,475.86-21,274.56-13,314.54

Finding the Fourth Proportional to 15,475.86, 21,274.56 and 13,314.54

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Solution

The fourth proportional to 15,475.86, 21,274.56 and 13,314.54 is: 18,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.86 : 21,274.56 = 13,314.54 : x
  2. Step 2: Convert to fraction form
    15,475.86/21,274.56 = 13,314.54/x
  3. Step 3: Cross multiply
    15,475.86x = 21,274.56 × 13,314.54
  4. Step 4: Simplify right side
    15,475.86x = 283,260,980.10
  5. Step 5: Solve for x
    x = 283,260,980.10/15,475.86
  6. Step 6: Final answer
    x = 18,303.41

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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.