Home / 14,275.68-19,700.70-7,988.04

Finding the Fourth Proportional to 14,275.68, 19,700.70 and 7,988.04

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Solution

The fourth proportional to 14,275.68, 19,700.70 and 7,988.04 is: 11,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.68 : 19,700.70 = 7,988.04 : x
  2. Step 2: Convert to fraction form
    14,275.68/19,700.70 = 7,988.04/x
  3. Step 3: Cross multiply
    14,275.68x = 19,700.70 × 7,988.04
  4. Step 4: Simplify right side
    14,275.68x = 157,369,979.63
  5. Step 5: Solve for x
    x = 157,369,979.63/14,275.68
  6. Step 6: Final answer
    x = 11,023.64

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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.