Home / 13,085.86-18,059.23-7,117.41

Finding the Fourth Proportional to 13,085.86, 18,059.23 and 7,117.41

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Solution

The fourth proportional to 13,085.86, 18,059.23 and 7,117.41 is: 9,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.86 : 18,059.23 = 7,117.41 : x
  2. Step 2: Convert to fraction form
    13,085.86/18,059.23 = 7,117.41/x
  3. Step 3: Cross multiply
    13,085.86x = 18,059.23 × 7,117.41
  4. Step 4: Simplify right side
    13,085.86x = 128,534,944.19
  5. Step 5: Solve for x
    x = 128,534,944.19/13,085.86
  6. Step 6: Final answer
    x = 9,822.43

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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.