Home / 16,701.76-23,045.72-9,990.16

Finding the Fourth Proportional to 16,701.76, 23,045.72 and 9,990.16

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Solution

The fourth proportional to 16,701.76, 23,045.72 and 9,990.16 is: 13,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,701.76 : 23,045.72 = 9,990.16 : x
  2. Step 2: Convert to fraction form
    16,701.76/23,045.72 = 9,990.16/x
  3. Step 3: Cross multiply
    16,701.76x = 23,045.72 × 9,990.16
  4. Step 4: Simplify right side
    16,701.76x = 230,230,430.12
  5. Step 5: Solve for x
    x = 230,230,430.12/16,701.76
  6. Step 6: Final answer
    x = 13,784.80

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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.