Home / 15,354.72-21,181.23-10,259.01

Finding the Fourth Proportional to 15,354.72, 21,181.23 and 10,259.01

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Solution

The fourth proportional to 15,354.72, 21,181.23 and 10,259.01 is: 14,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354.72 : 21,181.23 = 10,259.01 : x
  2. Step 2: Convert to fraction form
    15,354.72/21,181.23 = 10,259.01/x
  3. Step 3: Cross multiply
    15,354.72x = 21,181.23 × 10,259.01
  4. Step 4: Simplify right side
    15,354.72x = 217,298,450.38
  5. Step 5: Solve for x
    x = 217,298,450.38/15,354.72
  6. Step 6: Final answer
    x = 14,151.90

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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.