Home / 14,810.16-20,438.19-8,436.45

Finding the Fourth Proportional to 14,810.16, 20,438.19 and 8,436.45

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Solution

The fourth proportional to 14,810.16, 20,438.19 and 8,436.45 is: 11,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.16 : 20,438.19 = 8,436.45 : x
  2. Step 2: Convert to fraction form
    14,810.16/20,438.19 = 8,436.45/x
  3. Step 3: Cross multiply
    14,810.16x = 20,438.19 × 8,436.45
  4. Step 4: Simplify right side
    14,810.16x = 172,425,768.03
  5. Step 5: Solve for x
    x = 172,425,768.03/14,810.16
  6. Step 6: Final answer
    x = 11,642.40

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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.