Home / 15,416.99-23,126.51-5,420.51

Finding the Fourth Proportional to 15,416.99, 23,126.51 and 5,420.51

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Solution

The fourth proportional to 15,416.99, 23,126.51 and 5,420.51 is: 8,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.99 : 23,126.51 = 5,420.51 : x
  2. Step 2: Convert to fraction form
    15,416.99/23,126.51 = 5,420.51/x
  3. Step 3: Cross multiply
    15,416.99x = 23,126.51 × 5,420.51
  4. Step 4: Simplify right side
    15,416.99x = 125,357,478.72
  5. Step 5: Solve for x
    x = 125,357,478.72/15,416.99
  6. Step 6: Final answer
    x = 8,131.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.