Home / 10,985.22-15,157.23-6,510.36

Finding the Fourth Proportional to 10,985.22, 15,157.23 and 6,510.36

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Solution

The fourth proportional to 10,985.22, 15,157.23 and 6,510.36 is: 8,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.22 : 15,157.23 = 6,510.36 : x
  2. Step 2: Convert to fraction form
    10,985.22/15,157.23 = 6,510.36/x
  3. Step 3: Cross multiply
    10,985.22x = 15,157.23 × 6,510.36
  4. Step 4: Simplify right side
    10,985.22x = 98,679,023.90
  5. Step 5: Solve for x
    x = 98,679,023.90/10,985.22
  6. Step 6: Final answer
    x = 8,982.89

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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.