Home / 15,851.71-21,873.83-9,477.04

Finding the Fourth Proportional to 15,851.71, 21,873.83 and 9,477.04

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Solution

The fourth proportional to 15,851.71, 21,873.83 and 9,477.04 is: 13,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.71 : 21,873.83 = 9,477.04 : x
  2. Step 2: Convert to fraction form
    15,851.71/21,873.83 = 9,477.04/x
  3. Step 3: Cross multiply
    15,851.71x = 21,873.83 × 9,477.04
  4. Step 4: Simplify right side
    15,851.71x = 207,299,161.86
  5. Step 5: Solve for x
    x = 207,299,161.86/15,851.71
  6. Step 6: Final answer
    x = 13,077.40

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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.