Home / 10,987.02-15,162.36-6,206.10

Finding the Fourth Proportional to 10,987.02, 15,162.36 and 6,206.10

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Solution

The fourth proportional to 10,987.02, 15,162.36 and 6,206.10 is: 8,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.02 : 15,162.36 = 6,206.10 : x
  2. Step 2: Convert to fraction form
    10,987.02/15,162.36 = 6,206.10/x
  3. Step 3: Cross multiply
    10,987.02x = 15,162.36 × 6,206.10
  4. Step 4: Simplify right side
    10,987.02x = 94,099,122.40
  5. Step 5: Solve for x
    x = 94,099,122.40/10,987.02
  6. Step 6: Final answer
    x = 8,564.57

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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.