Home / 15,887.53-21,925.80-9,174.40

Finding the Fourth Proportional to 15,887.53, 21,925.80 and 9,174.40

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Solution

The fourth proportional to 15,887.53, 21,925.80 and 9,174.40 is: 12,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.53 : 21,925.80 = 9,174.40 : x
  2. Step 2: Convert to fraction form
    15,887.53/21,925.80 = 9,174.40/x
  3. Step 3: Cross multiply
    15,887.53x = 21,925.80 × 9,174.40
  4. Step 4: Simplify right side
    15,887.53x = 201,156,059.52
  5. Step 5: Solve for x
    x = 201,156,059.52/15,887.53
  6. Step 6: Final answer
    x = 12,661.25

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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.