Home / 14,639.50-20,204.10-9,607.78

Finding the Fourth Proportional to 14,639.50, 20,204.10 and 9,607.78

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Solution

The fourth proportional to 14,639.50, 20,204.10 and 9,607.78 is: 13,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.50 : 20,204.10 = 9,607.78 : x
  2. Step 2: Convert to fraction form
    14,639.50/20,204.10 = 9,607.78/x
  3. Step 3: Cross multiply
    14,639.50x = 20,204.10 × 9,607.78
  4. Step 4: Simplify right side
    14,639.50x = 194,116,547.90
  5. Step 5: Solve for x
    x = 194,116,547.90/14,639.50
  6. Step 6: Final answer
    x = 13,259.78

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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.