Home / 15,615.07-23,420.14-5,085.47

Finding the Fourth Proportional to 15,615.07, 23,420.14 and 5,085.47

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Solution

The fourth proportional to 15,615.07, 23,420.14 and 5,085.47 is: 7,627.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.07 : 23,420.14 = 5,085.47 : x
  2. Step 2: Convert to fraction form
    15,615.07/23,420.14 = 5,085.47/x
  3. Step 3: Cross multiply
    15,615.07x = 23,420.14 × 5,085.47
  4. Step 4: Simplify right side
    15,615.07x = 119,102,419.37
  5. Step 5: Solve for x
    x = 119,102,419.37/15,615.07
  6. Step 6: Final answer
    x = 7,627.40

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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.