Home / 11,707.02-16,158.54-9,815.60

Finding the Fourth Proportional to 11,707.02, 16,158.54 and 9,815.60

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Solution

The fourth proportional to 11,707.02, 16,158.54 and 9,815.60 is: 13,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.02 : 16,158.54 = 9,815.60 : x
  2. Step 2: Convert to fraction form
    11,707.02/16,158.54 = 9,815.60/x
  3. Step 3: Cross multiply
    11,707.02x = 16,158.54 × 9,815.60
  4. Step 4: Simplify right side
    11,707.02x = 158,605,765.22
  5. Step 5: Solve for x
    x = 158,605,765.22/11,707.02
  6. Step 6: Final answer
    x = 13,547.92

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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.