Home / 10,430.04-15,643.80-3,505.08

Finding the Fourth Proportional to 10,430.04, 15,643.80 and 3,505.08

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Solution

The fourth proportional to 10,430.04, 15,643.80 and 3,505.08 is: 5,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.04 : 15,643.80 = 3,505.08 : x
  2. Step 2: Convert to fraction form
    10,430.04/15,643.80 = 3,505.08/x
  3. Step 3: Cross multiply
    10,430.04x = 15,643.80 × 3,505.08
  4. Step 4: Simplify right side
    10,430.04x = 54,832,770.50
  5. Step 5: Solve for x
    x = 54,832,770.50/10,430.04
  6. Step 6: Final answer
    x = 5,257.20

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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.