Home / 10,530.90-15,805.44-4,294.35

Finding the Fourth Proportional to 10,530.90, 15,805.44 and 4,294.35

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Solution

The fourth proportional to 10,530.90, 15,805.44 and 4,294.35 is: 6,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.90 : 15,805.44 = 4,294.35 : x
  2. Step 2: Convert to fraction form
    10,530.90/15,805.44 = 4,294.35/x
  3. Step 3: Cross multiply
    10,530.90x = 15,805.44 × 4,294.35
  4. Step 4: Simplify right side
    10,530.90x = 67,874,091.26
  5. Step 5: Solve for x
    x = 67,874,091.26/10,530.90
  6. Step 6: Final answer
    x = 6,445.23

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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.