Home / 10,430.64-15,647.40-3,507.12

Finding the Fourth Proportional to 10,430.64, 15,647.40 and 3,507.12

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Solution

The fourth proportional to 10,430.64, 15,647.40 and 3,507.12 is: 5,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.64 : 15,647.40 = 3,507.12 : x
  2. Step 2: Convert to fraction form
    10,430.64/15,647.40 = 3,507.12/x
  3. Step 3: Cross multiply
    10,430.64x = 15,647.40 × 3,507.12
  4. Step 4: Simplify right side
    10,430.64x = 54,877,309.49
  5. Step 5: Solve for x
    x = 54,877,309.49/10,430.64
  6. Step 6: Final answer
    x = 5,261.16

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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.