Home / 10,661.18-15,967.47-8,710.70

Finding the Fourth Proportional to 10,661.18, 15,967.47 and 8,710.70

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Solution

The fourth proportional to 10,661.18, 15,967.47 and 8,710.70 is: 13,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.18 : 15,967.47 = 8,710.70 : x
  2. Step 2: Convert to fraction form
    10,661.18/15,967.47 = 8,710.70/x
  3. Step 3: Cross multiply
    10,661.18x = 15,967.47 × 8,710.70
  4. Step 4: Simplify right side
    10,661.18x = 139,087,840.93
  5. Step 5: Solve for x
    x = 139,087,840.93/10,661.18
  6. Step 6: Final answer
    x = 13,046.20

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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.