Home / 10,445.43-15,666.44-3,870.08

Finding the Fourth Proportional to 10,445.43, 15,666.44 and 3,870.08

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Solution

The fourth proportional to 10,445.43, 15,666.44 and 3,870.08 is: 5,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.43 : 15,666.44 = 3,870.08 : x
  2. Step 2: Convert to fraction form
    10,445.43/15,666.44 = 3,870.08/x
  3. Step 3: Cross multiply
    10,445.43x = 15,666.44 × 3,870.08
  4. Step 4: Simplify right side
    10,445.43x = 60,630,348.07
  5. Step 5: Solve for x
    x = 60,630,348.07/10,445.43
  6. Step 6: Final answer
    x = 5,804.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.