Home / 15,570.72-21,473.08-10,256.30

Finding the Fourth Proportional to 15,570.72, 21,473.08 and 10,256.30

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Solution

The fourth proportional to 15,570.72, 21,473.08 and 10,256.30 is: 14,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.72 : 21,473.08 = 10,256.30 : x
  2. Step 2: Convert to fraction form
    15,570.72/21,473.08 = 10,256.30/x
  3. Step 3: Cross multiply
    15,570.72x = 21,473.08 × 10,256.30
  4. Step 4: Simplify right side
    15,570.72x = 220,234,350.40
  5. Step 5: Solve for x
    x = 220,234,350.40/15,570.72
  6. Step 6: Final answer
    x = 14,144.13

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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.