Home / 16,870.68-23,281.14-9,316.86

Finding the Fourth Proportional to 16,870.68, 23,281.14 and 9,316.86

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Solution

The fourth proportional to 16,870.68, 23,281.14 and 9,316.86 is: 12,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.68 : 23,281.14 = 9,316.86 : x
  2. Step 2: Convert to fraction form
    16,870.68/23,281.14 = 9,316.86/x
  3. Step 3: Cross multiply
    16,870.68x = 23,281.14 × 9,316.86
  4. Step 4: Simplify right side
    16,870.68x = 216,907,122.02
  5. Step 5: Solve for x
    x = 216,907,122.02/16,870.68
  6. Step 6: Final answer
    x = 12,857.05

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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.