Home / 15,361.23-21,196.86-8,646.74

Finding the Fourth Proportional to 15,361.23, 21,196.86 and 8,646.74

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Solution

The fourth proportional to 15,361.23, 21,196.86 and 8,646.74 is: 11,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.23 : 21,196.86 = 8,646.74 : x
  2. Step 2: Convert to fraction form
    15,361.23/21,196.86 = 8,646.74/x
  3. Step 3: Cross multiply
    15,361.23x = 21,196.86 × 8,646.74
  4. Step 4: Simplify right side
    15,361.23x = 183,283,737.24
  5. Step 5: Solve for x
    x = 183,283,737.24/15,361.23
  6. Step 6: Final answer
    x = 11,931.58

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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.