Home / 15,824.80-21,831.36-9,533.56

Finding the Fourth Proportional to 15,824.80, 21,831.36 and 9,533.56

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Solution

The fourth proportional to 15,824.80, 21,831.36 and 9,533.56 is: 13,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.80 : 21,831.36 = 9,533.56 : x
  2. Step 2: Convert to fraction form
    15,824.80/21,831.36 = 9,533.56/x
  3. Step 3: Cross multiply
    15,824.80x = 21,831.36 × 9,533.56
  4. Step 4: Simplify right side
    15,824.80x = 208,130,580.44
  5. Step 5: Solve for x
    x = 208,130,580.44/15,824.80
  6. Step 6: Final answer
    x = 13,152.18

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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.