Home / 14,038.79-21,047.80-6,634.61

Finding the Fourth Proportional to 14,038.79, 21,047.80 and 6,634.61

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Solution

The fourth proportional to 14,038.79, 21,047.80 and 6,634.61 is: 9,947.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.79 : 21,047.80 = 6,634.61 : x
  2. Step 2: Convert to fraction form
    14,038.79/21,047.80 = 6,634.61/x
  3. Step 3: Cross multiply
    14,038.79x = 21,047.80 × 6,634.61
  4. Step 4: Simplify right side
    14,038.79x = 139,643,913.90
  5. Step 5: Solve for x
    x = 139,643,913.90/14,038.79
  6. Step 6: Final answer
    x = 9,947.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.