Home / 10,985.16-15,158.76-6,269.34

Finding the Fourth Proportional to 10,985.16, 15,158.76 and 6,269.34

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Solution

The fourth proportional to 10,985.16, 15,158.76 and 6,269.34 is: 8,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.16 : 15,158.76 = 6,269.34 : x
  2. Step 2: Convert to fraction form
    10,985.16/15,158.76 = 6,269.34/x
  3. Step 3: Cross multiply
    10,985.16x = 15,158.76 × 6,269.34
  4. Step 4: Simplify right side
    10,985.16x = 95,035,420.42
  5. Step 5: Solve for x
    x = 95,035,420.42/10,985.16
  6. Step 6: Final answer
    x = 8,651.26

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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.