Home / 19,515.95-26,924.80-12,810.69

Finding the Fourth Proportional to 19,515.95, 26,924.80 and 12,810.69

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Solution

The fourth proportional to 19,515.95, 26,924.80 and 12,810.69 is: 17,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.95 : 26,924.80 = 12,810.69 : x
  2. Step 2: Convert to fraction form
    19,515.95/26,924.80 = 12,810.69/x
  3. Step 3: Cross multiply
    19,515.95x = 26,924.80 × 12,810.69
  4. Step 4: Simplify right side
    19,515.95x = 344,925,133.12
  5. Step 5: Solve for x
    x = 344,925,133.12/19,515.95
  6. Step 6: Final answer
    x = 17,674.01

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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.