Home / 16,692.90-23,036.47-9,139.10

Finding the Fourth Proportional to 16,692.90, 23,036.47 and 9,139.10

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Solution

The fourth proportional to 16,692.90, 23,036.47 and 9,139.10 is: 12,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.90 : 23,036.47 = 9,139.10 : x
  2. Step 2: Convert to fraction form
    16,692.90/23,036.47 = 9,139.10/x
  3. Step 3: Cross multiply
    16,692.90x = 23,036.47 × 9,139.10
  4. Step 4: Simplify right side
    16,692.90x = 210,532,602.98
  5. Step 5: Solve for x
    x = 210,532,602.98/16,692.90
  6. Step 6: Final answer
    x = 12,612.10

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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.