Home / 15,483.06-21,361.05-9,195.30

Finding the Fourth Proportional to 15,483.06, 21,361.05 and 9,195.30

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Solution

The fourth proportional to 15,483.06, 21,361.05 and 9,195.30 is: 12,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.06 : 21,361.05 = 9,195.30 : x
  2. Step 2: Convert to fraction form
    15,483.06/21,361.05 = 9,195.30/x
  3. Step 3: Cross multiply
    15,483.06x = 21,361.05 × 9,195.30
  4. Step 4: Simplify right side
    15,483.06x = 196,421,263.07
  5. Step 5: Solve for x
    x = 196,421,263.07/15,483.06
  6. Step 6: Final answer
    x = 12,686.20

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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.