Home / 14,947.65-20,641.95-12,810.87

Finding the Fourth Proportional to 14,947.65, 20,641.95 and 12,810.87

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Solution

The fourth proportional to 14,947.65, 20,641.95 and 12,810.87 is: 17,691.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.65 : 20,641.95 = 12,810.87 : x
  2. Step 2: Convert to fraction form
    14,947.65/20,641.95 = 12,810.87/x
  3. Step 3: Cross multiply
    14,947.65x = 20,641.95 × 12,810.87
  4. Step 4: Simplify right side
    14,947.65x = 264,441,338.00
  5. Step 5: Solve for x
    x = 264,441,338.00/14,947.65
  6. Step 6: Final answer
    x = 17,691.16

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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.