Home / 17,385.55-23,986.40-9,831.13

Finding the Fourth Proportional to 17,385.55, 23,986.40 and 9,831.13

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Solution

The fourth proportional to 17,385.55, 23,986.40 and 9,831.13 is: 13,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.55 : 23,986.40 = 9,831.13 : x
  2. Step 2: Convert to fraction form
    17,385.55/23,986.40 = 9,831.13/x
  3. Step 3: Cross multiply
    17,385.55x = 23,986.40 × 9,831.13
  4. Step 4: Simplify right side
    17,385.55x = 235,813,307.51
  5. Step 5: Solve for x
    x = 235,813,307.51/17,385.55
  6. Step 6: Final answer
    x = 13,563.76

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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.